InterviewSolution
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InterviewSolution
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Factorise : 27 + 125 a3 + 135a + 225 a2(a) (3 + 5a)(3 + 5a)(3 - 5a)(b) (3 - 5a)(3 - 5a)(3 + 5a)(c) (3 + 5a)(3 + 5a)(3 + 5a)(d) (3 - 5a)(3 - 5a)(3 - 5a) |
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Answer» (c) (3 + 5a)(3 + 5a)(3 + 5a) 27 + 125a3 + 135a + 225a2 = (3)3 + (5a)3 + 3 x 32 x 5a + 3 x 3 x (5a)2 = (3 + 5a)3 |
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