SOLUTION: Factor completely. y^2(y+1)-4y(y+1)-21(y+1)

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Question 238952: Factor completely.
y^2(y+1)-4y(y+1)-21(y+1)

Answer by scott8148(6628) About Me  (Show Source):
You can put this solution on YOUR website!
(y + 1) (y - 7) (y + 3)