If $p(3)=0$ for polynomial $p(x),$ state one factor of $p(x)$

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

$x+1$

Find the quotient and the remainder when $x^{3}+x^{2}-10 x+8$ is divided by

$x+3$

Evaluate the following products without multiplying directly

$84 \times 79$

For the polynomial $p(x)=x^{2}-7 x+12$ $p(2)=\ldots \ldots . .$