find the x-intercepts by factoring g(x)=x^4-27x
I'm really confused. All I can think is to factor out one x, but that only makes the x-intercept 0 and the answer is supposed to be 0 and 3. I don't understand what I'm doing wrong.
After you have factored out the zero, make use of :
(A³-B³)=(A-B)(A²+AB+B²)