Question

how to factorize h^3-8h+8​

Answer 1

Step-by-step explanation:

h^3-8h+8

=h^3-4h-4h+8

=h(h^2-4)-4(h-2)

=h(h+2)(h-2)-4(h-2) [x^2-4=(x-2)(x+2)]

=(h-2)[h(h+2)-4]

=(h-2)(h^2+2h-4)