Question 269066
25a squared-(a+5)squared
(5a)^2 - (a+5)^2
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Form: a^2-b^2 = (a-b)(a+b)
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Your Problem:
(5a - (a+5)(5a + (a+5)
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= (4a+5)(6a+5)
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Cheers,
Stan H.