The value of the polynomial $5 x-4 x^{2}+3,$ when $x=-1$ is

Zero of the zero polynomial is

Find the quotient and the remainder when $2 x^{2}-7 x-15$ is divided by

$2 x-3$

Expand

$\left(\frac{2 x}{3}+\frac{3 y}{4}\right)^{2}$

Write the degree of each of the following polynomials

$a x^{3}+b x^{2}+c x+d$

Expand the following:

$(-x+2 y-3 z)^{2}$