Find $p(1), p(2)$ and $p(4)$ for each of the following polynomials

$p(x)=x^{3}+9 x^{2}+23 x+15$

Write the coefficients of $x^{2}$ in each of the following polynomials

$3 x^{3}-8 x^{2}+14 x-5$

Divide $p(x)=21+10 x+x^{2}$ by $g(x)=2+x$ and find the quotient and the remainder.

Evaluate

$(101)^{2}$

Evaluate the following products without multiplying directly

$88 \times 86$

Find the following product :

$(2 x-y+3 z)\left(4 x^{2}+y^{2}+9 z^{2}+2 x y+3 y z-6 x z\right)$