Find the value of the polynomial $x^{2}-7 x+12$ at.
$x=-2$
$22$
$17$
$15$
$30$
If $(2 x+3)(3 x-1)=6 x^{2}+k x-3,$ then find $k$.
Verify whether the following are True or False:
$-3$ is a zero of $x-3$
Examine whether $2 x+3$ is a factor of $2 x^{3}+21 x^{2}+67 x+60$ or not.
Zero of the zero polynomial is
If $p(x)=x^{2}-4 x+3$ then, find the value of $p(2)-p(-1)+p\left(\frac{1}{2}\right)$