i need help on factoring these the chapter is called "5-11 using several methods of factoring"
2x^4-162
25z^3-36y^2z
can you show how you did it to
$\displaystyle 2x^4-162$
$\displaystyle 2(x^2-81)$
$\displaystyle 2(x^2-9^2)$
$\displaystyle 2(x-9)(x+9)$
$\displaystyle 25z^3-36y^2z$25z^3-36y^2z
$\displaystyle z(25z^2-36y^2)$
$\displaystyle z(5^2z^2-6^2y^2)$
$\displaystyle z[(5z)^2-(6y)^2]$
$\displaystyle z(5z-6y)(5z+6y)$