27-125a3-135a+225a2
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Preeti Dabral 3 years, 3 months ago
27 - 125a3 - 135a + 225a2
= (3)3 - (5a)3 - 3(3)(5a)(3 - 5a)
= (3 - 5a)3
(Using Identity (a – b)3= a3– b3– 3ab (a – b))
= (3 - 5a)(3 - 5a)(3 - 5a)
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