Question

factor y^5+y^4-16y-16

Answer 1

y^5+y^4-16y-16
y^4(y+1)-16(y+1)
(y+1)(y^4-16)
(y+1)(y^2+4)(y^2-4)
(y+1)(y^2+4)(y+2)(y-2)

Answer 2

any questions?

Answer 3

how did you get y+1??

Answer 4

y^4/y^4 = 1

y^5/y^4 = y^(5-4) = y^1 = y

Answer 5

-16/-16 = 1
-16y/-16 = y

Answer 6

When you factor, you're really dividing