Question 257336
Find all of the zeros of F(x) if F(x)=(x^2-4)^3 


A zero of F(x) is a number k for which F(k) = 0.

We need to find values of x that cause (x^2-4)^3 = 0.

Note that x^2 - 4 = (x+2)*(x-2) so we need to find values of x such that 
[(x+2)*(x-2)]^3 = 0

So zeros are where x-2 = 0 or x+2 = 0.

That is x = 2 or x = -2