Prove that if $f(x)$ divides $g(x)$ and $f(x)$ divides $h(x)$, then $f(x)$ divides $s(x)g(x) +t(x)h(x)$. Announcing the arrival of Valued Associate #679: Cesar Manara Planned maintenance scheduled April 23, 2019 at 23:30 UTC (7:30pm US/Eastern)If $3$ divides $a^2 + b^2$, then $3$ divides $a$ and $3$ divides $b$If $gcd(a,b)= 1$ and $a$ divides $bc$ then $a$ divides $c $ [Euclid's Lemma]Show that if $10$ divides into $n^2$ evenly then $10$ divides into $n$ evenlyIf $d$ divides $k$ and $d$ divides $n$, then $d$ divides $(8k - 3n)$How to prove that linear polynomials are irreducible?Prove divisibility: If $j_1mid j_2$ and $j_2mid j_1$, then $j_1 = pm j_2$Prove that if $(a+b)$ divides $a^2$ then $(a+b)$ divides $b^2$prove that 15 divides $n^7+2n^5+4n^3+8n$ for any integer nIf $f(x)$ divides $g(x)$ in $R[x]$ then $f(h(x))$ divides $g(h(x))$ in $R[x]$ (?).Prove that if $a$ divides $b^2$ then $a$ divides $b$
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Prove that if $f(x)$ divides $g(x)$ and $f(x)$ divides $h(x)$, then $f(x)$ divides $s(x)g(x) +t(x)h(x)$.
Announcing the arrival of Valued Associate #679: Cesar Manara
Planned maintenance scheduled April 23, 2019 at 23:30 UTC (7:30pm US/Eastern)If $3$ divides $a^2 + b^2$, then $3$ divides $a$ and $3$ divides $b$If $gcd(a,b)= 1$ and $a$ divides $bc$ then $a$ divides $c $ [Euclid's Lemma]Show that if $10$ divides into $n^2$ evenly then $10$ divides into $n$ evenlyIf $d$ divides $k$ and $d$ divides $n$, then $d$ divides $(8k - 3n)$How to prove that linear polynomials are irreducible?Prove divisibility: If $j_1mid j_2$ and $j_2mid j_1$, then $j_1 = pm j_2$Prove that if $(a+b)$ divides $a^2$ then $(a+b)$ divides $b^2$prove that 15 divides $n^7+2n^5+4n^3+8n$ for any integer nIf $f(x)$ divides $g(x)$ in $R[x]$ then $f(h(x))$ divides $g(h(x))$ in $R[x]$ (?).Prove that if $a$ divides $b^2$ then $a$ divides $b$
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Let $F$ be a field. Prove that for all polynomials $f(x), g(x), h(x) in F[x]$, if $f(x)$ divides $g(x)$ and $f(x)$ divides $h(x)$, then for all polynomials $s(x), t(x)in F[x]$, $f(x)$ divides $s(x)g(x) +t(x)h(x)$.
How do I prove this question? I know that $f(x)=g(x)q(x)+r(x)$ but I'm not sure if I use that at all in this question.
polynomials divisibility
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add a comment |
$begingroup$
Let $F$ be a field. Prove that for all polynomials $f(x), g(x), h(x) in F[x]$, if $f(x)$ divides $g(x)$ and $f(x)$ divides $h(x)$, then for all polynomials $s(x), t(x)in F[x]$, $f(x)$ divides $s(x)g(x) +t(x)h(x)$.
How do I prove this question? I know that $f(x)=g(x)q(x)+r(x)$ but I'm not sure if I use that at all in this question.
polynomials divisibility
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$begingroup$
$f(x)$ is a factor of both $g(x)$ and $h(x)$. Consider the case where $f(x)=2$, $g(x)=4$, and $h(x)=20$. Does $f(x)$ divide $4cdot s + 20 cdot t$?
$endgroup$
– Andrew Tawfeek
Apr 2 at 1:49
add a comment |
$begingroup$
Let $F$ be a field. Prove that for all polynomials $f(x), g(x), h(x) in F[x]$, if $f(x)$ divides $g(x)$ and $f(x)$ divides $h(x)$, then for all polynomials $s(x), t(x)in F[x]$, $f(x)$ divides $s(x)g(x) +t(x)h(x)$.
How do I prove this question? I know that $f(x)=g(x)q(x)+r(x)$ but I'm not sure if I use that at all in this question.
polynomials divisibility
$endgroup$
Let $F$ be a field. Prove that for all polynomials $f(x), g(x), h(x) in F[x]$, if $f(x)$ divides $g(x)$ and $f(x)$ divides $h(x)$, then for all polynomials $s(x), t(x)in F[x]$, $f(x)$ divides $s(x)g(x) +t(x)h(x)$.
How do I prove this question? I know that $f(x)=g(x)q(x)+r(x)$ but I'm not sure if I use that at all in this question.
polynomials divisibility
polynomials divisibility
asked Apr 2 at 1:36
SaniaSania
406
406
$begingroup$
$f(x)$ is a factor of both $g(x)$ and $h(x)$. Consider the case where $f(x)=2$, $g(x)=4$, and $h(x)=20$. Does $f(x)$ divide $4cdot s + 20 cdot t$?
$endgroup$
– Andrew Tawfeek
Apr 2 at 1:49
add a comment |
$begingroup$
$f(x)$ is a factor of both $g(x)$ and $h(x)$. Consider the case where $f(x)=2$, $g(x)=4$, and $h(x)=20$. Does $f(x)$ divide $4cdot s + 20 cdot t$?
$endgroup$
– Andrew Tawfeek
Apr 2 at 1:49
$begingroup$
$f(x)$ is a factor of both $g(x)$ and $h(x)$. Consider the case where $f(x)=2$, $g(x)=4$, and $h(x)=20$. Does $f(x)$ divide $4cdot s + 20 cdot t$?
$endgroup$
– Andrew Tawfeek
Apr 2 at 1:49
$begingroup$
$f(x)$ is a factor of both $g(x)$ and $h(x)$. Consider the case where $f(x)=2$, $g(x)=4$, and $h(x)=20$. Does $f(x)$ divide $4cdot s + 20 cdot t$?
$endgroup$
– Andrew Tawfeek
Apr 2 at 1:49
add a comment |
2 Answers
2
active
oldest
votes
$begingroup$
Hint: How would you prove an equivalent statment for the integers?
$endgroup$
$begingroup$
Would I use DIC for polynomials?
$endgroup$
– Sania
Apr 2 at 1:40
$begingroup$
What is DIC?...
$endgroup$
– Maria Mazur
Apr 2 at 1:41
$begingroup$
If a divides b and a divides c then for integers x,y a divides bx+cy
$endgroup$
– Sania
Apr 2 at 1:41
$begingroup$
Actualy this is an equivalent statement, you need to remember how do you prove it.
$endgroup$
– Maria Mazur
Apr 2 at 1:43
add a comment |
$begingroup$
If $f(x)$ divides $g(x)$, then $g(x) = f(x)q(x)$ and likewise $h(x) = f(x)r(x)$.
Also note that $f(x)$ divides $s(x)g(x)$, since $s(x)g(x) = s(x) f(x)q(x)$.
$endgroup$
add a comment |
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2 Answers
2
active
oldest
votes
2 Answers
2
active
oldest
votes
active
oldest
votes
active
oldest
votes
$begingroup$
Hint: How would you prove an equivalent statment for the integers?
$endgroup$
$begingroup$
Would I use DIC for polynomials?
$endgroup$
– Sania
Apr 2 at 1:40
$begingroup$
What is DIC?...
$endgroup$
– Maria Mazur
Apr 2 at 1:41
$begingroup$
If a divides b and a divides c then for integers x,y a divides bx+cy
$endgroup$
– Sania
Apr 2 at 1:41
$begingroup$
Actualy this is an equivalent statement, you need to remember how do you prove it.
$endgroup$
– Maria Mazur
Apr 2 at 1:43
add a comment |
$begingroup$
Hint: How would you prove an equivalent statment for the integers?
$endgroup$
$begingroup$
Would I use DIC for polynomials?
$endgroup$
– Sania
Apr 2 at 1:40
$begingroup$
What is DIC?...
$endgroup$
– Maria Mazur
Apr 2 at 1:41
$begingroup$
If a divides b and a divides c then for integers x,y a divides bx+cy
$endgroup$
– Sania
Apr 2 at 1:41
$begingroup$
Actualy this is an equivalent statement, you need to remember how do you prove it.
$endgroup$
– Maria Mazur
Apr 2 at 1:43
add a comment |
$begingroup$
Hint: How would you prove an equivalent statment for the integers?
$endgroup$
Hint: How would you prove an equivalent statment for the integers?
answered Apr 2 at 1:38
Maria MazurMaria Mazur
50.3k1361126
50.3k1361126
$begingroup$
Would I use DIC for polynomials?
$endgroup$
– Sania
Apr 2 at 1:40
$begingroup$
What is DIC?...
$endgroup$
– Maria Mazur
Apr 2 at 1:41
$begingroup$
If a divides b and a divides c then for integers x,y a divides bx+cy
$endgroup$
– Sania
Apr 2 at 1:41
$begingroup$
Actualy this is an equivalent statement, you need to remember how do you prove it.
$endgroup$
– Maria Mazur
Apr 2 at 1:43
add a comment |
$begingroup$
Would I use DIC for polynomials?
$endgroup$
– Sania
Apr 2 at 1:40
$begingroup$
What is DIC?...
$endgroup$
– Maria Mazur
Apr 2 at 1:41
$begingroup$
If a divides b and a divides c then for integers x,y a divides bx+cy
$endgroup$
– Sania
Apr 2 at 1:41
$begingroup$
Actualy this is an equivalent statement, you need to remember how do you prove it.
$endgroup$
– Maria Mazur
Apr 2 at 1:43
$begingroup$
Would I use DIC for polynomials?
$endgroup$
– Sania
Apr 2 at 1:40
$begingroup$
Would I use DIC for polynomials?
$endgroup$
– Sania
Apr 2 at 1:40
$begingroup$
What is DIC?...
$endgroup$
– Maria Mazur
Apr 2 at 1:41
$begingroup$
What is DIC?...
$endgroup$
– Maria Mazur
Apr 2 at 1:41
$begingroup$
If a divides b and a divides c then for integers x,y a divides bx+cy
$endgroup$
– Sania
Apr 2 at 1:41
$begingroup$
If a divides b and a divides c then for integers x,y a divides bx+cy
$endgroup$
– Sania
Apr 2 at 1:41
$begingroup$
Actualy this is an equivalent statement, you need to remember how do you prove it.
$endgroup$
– Maria Mazur
Apr 2 at 1:43
$begingroup$
Actualy this is an equivalent statement, you need to remember how do you prove it.
$endgroup$
– Maria Mazur
Apr 2 at 1:43
add a comment |
$begingroup$
If $f(x)$ divides $g(x)$, then $g(x) = f(x)q(x)$ and likewise $h(x) = f(x)r(x)$.
Also note that $f(x)$ divides $s(x)g(x)$, since $s(x)g(x) = s(x) f(x)q(x)$.
$endgroup$
add a comment |
$begingroup$
If $f(x)$ divides $g(x)$, then $g(x) = f(x)q(x)$ and likewise $h(x) = f(x)r(x)$.
Also note that $f(x)$ divides $s(x)g(x)$, since $s(x)g(x) = s(x) f(x)q(x)$.
$endgroup$
add a comment |
$begingroup$
If $f(x)$ divides $g(x)$, then $g(x) = f(x)q(x)$ and likewise $h(x) = f(x)r(x)$.
Also note that $f(x)$ divides $s(x)g(x)$, since $s(x)g(x) = s(x) f(x)q(x)$.
$endgroup$
If $f(x)$ divides $g(x)$, then $g(x) = f(x)q(x)$ and likewise $h(x) = f(x)r(x)$.
Also note that $f(x)$ divides $s(x)g(x)$, since $s(x)g(x) = s(x) f(x)q(x)$.
answered Apr 2 at 1:40
user458276user458276
7431315
7431315
add a comment |
add a comment |
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$begingroup$
$f(x)$ is a factor of both $g(x)$ and $h(x)$. Consider the case where $f(x)=2$, $g(x)=4$, and $h(x)=20$. Does $f(x)$ divide $4cdot s + 20 cdot t$?
$endgroup$
– Andrew Tawfeek
Apr 2 at 1:49