Question

I need to factor this completely: 8x^8 - 56x^7 +40x^6

Answer 1

take out an 8x^6

Answer 2

Because that is the lcm? and I take it out of all the terms?

Answer 3

that is the GCF, greatest common factor. you can take it out of all 3 terms

Answer 4

Oh right. Then what I have left is x^2-7x+5

Answer 5

Yes, but don't discard the 8x^6, you have to leave that in there

Answer 6

(8x^6)(x^2-7x+5) would that be correct?

Answer 7

yes

Answer 8

can't factor the quadratic any more so you're done

Answer 9

Awesome! Wish you'd been my tutor for the last 18 weeks :P Thanks again :)

Answer 10

np