SOLUTION: factoring 9(y-1)^2-25.
a) I'm sorry if I put this question in the wrong spot. I didn't know where to put it.
b) I know the answer is: (3y-8)(3y+2), but I don't understand how
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-> SOLUTION: factoring 9(y-1)^2-25.
a) I'm sorry if I put this question in the wrong spot. I didn't know where to put it.
b) I know the answer is: (3y-8)(3y+2), but I don't understand how
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Question 904054: factoring 9(y-1)^2-25.
a) I'm sorry if I put this question in the wrong spot. I didn't know where to put it.
b) I know the answer is: (3y-8)(3y+2), but I don't understand how to get that. Answer by ewatrrr(24785) (Show Source):
You can put this solution on YOUR website! 9(y-1)^2-25 = 9(y^2 - 2y + 1) - 25 = 9y^2 - 18y -16
9y^2 - 18y -16 = (3y -8)(3y+2)
F First terms
O Outside terms 6y
I Inside terms -24y
L Last terms