Question

HELP! Medal and I WILL become a fan! :)

Using complete sentences, explain how you would factor completely x9 –27.

Answer 1

x^9 - 27

You can start to factor by taking the cubed root of the term

cuberoot(x^9 - 27) = x - 3

Are you with me so far?

Answer 2

Yes

Answer 3

The reason this is true is because it takes 3 sets of (x-3) to make x^9 - 27

This is because (x-3)(x-3)(x-3) = x^9 - 27

Is that a full enough explanation?

Answer 4

Yes, thank you so much! :)