SOLUTION: 4x^2(2y-5)-9(2y-5) please help me solvethis i got(2y-5) (4x^2-9) and i was told to keep going?

SOLUTION: 4x^2(2y-5)-9(2y-5) please help me solvethis i got(2y-5) (4x^2-9) and i was told to keep going?

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Question 446630: 4x^2(2y-5)-9(2y-5) please help me solvethis i got(2y-5) (4x^2-9) and i was told to keep going?
Answer by chriswen(106) (Show Source): You can put this solution on YOUR website!
You mean factor right?
You use the identity a^2 - b^2 =(a+b)(a-b)
...
(2y-5)(4x^2-9)
=(2y-5)((2x)^2-(3)^2)
=(2y-5)(2x+3)(2x-3)
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