Question

Factor y3-9y2+y-9 by grouping

Answer 1

(y^2 + 1)(y - 9)

Explanation:

I know everything so of course i know this too, duh..

Answer 2

y^3 - 9y^2 + y - 9
(y^3 + y) + (-9y^2 - 9)
y(y^2 + 1) - 9(y^2 + 1)
(y^2 + 1)(y - 9)
The correct answer to the problem is: (y^2 + 1)(y - 9)