From the following polynomials find out which of them has $(x+1)$ as a factor

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

Expand

$(2 x-3)(2 x+5)$

Find the following products:

$\left(x^{2}-1\right)\left(x^{4}+x^{2}+1\right)$

Zero of the zero polynomial is

Find the value of each of the following polynomials at the indicated value of variables

$q(y)=5 y^{3}-4 y^{2}+14 y-\sqrt{3}$ at $y=2$

Determine which of the following polynomials has $x-2$ a factor :

$3 x^{2}+6 x-24$

$4 x^{2}+ x-2$