posted by Zura on .
Need help finding the x-intercepts
I know that the answer is (10,0),(-10,0),(-1,0) I don't understand how to get (-10,0) and (10,0)
if you rearrange things a bit, you see
x^3-100x + x^2-100
= x(x^2-100) + 1(x^2-100)