Factorise the following:
$9 y^{2}-66 y z+121 z^{2}$
Factorise the following:
$9 y^{2}-66 y z+121 z^{2}$
We have,
$9 y^{2}-66 y z+121 z^{2}=(-3 y)^{2}+2(-3 y)(11 z)+(11 z)^{2}$
$=(-3 y+11 z)^{2} \quad\left[\because a^{2}+2 a b+b^{2}=(a+b)^{2}\right]$
$=(-3 y+11 z)(-3 y+11 z)$
$=(3 y-11 z)(3 y-11 z)$
Similar Questions
Factorise
$x^{3}-11 x^{2}+20 x+32$
Factorise
$x^{3}-11 x^{2}+20 x+32$
For the polynomial $p(x),$ if $p(7)=0,$ then .......... is a factor of $p(x)$.
For the polynomial $p(x),$ if $p(7)=0,$ then .......... is a factor of $p(x)$.
If $x+2$ is a factor of $x^{3}+a x^{2}-x+30,$ find the value of $a$.
If $x+2$ is a factor of $x^{3}+a x^{2}-x+30,$ find the value of $a$.
Zero of the zero polynomial is
Zero of the zero polynomial is
Find $p(1), p(2)$ and $p(4)$ for each of the following polynomials
$p(t)=t^{2}-6 t+8$
Find $p(1), p(2)$ and $p(4)$ for each of the following polynomials
$p(t)=t^{2}-6 t+8$