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27-125a3-135a+225a2

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27-125a3-135a+225a2

    • Posted by Devindra Chansta 4 years, 6 months ago

    CBSE > Class 09 > Mathematics
    • 1 answers

    Preeti Dabral 4 years, 6 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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