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(a+b)^3-(a-b)^3

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(a+b)^3-(a-b)^3

    • Posted by Laxmi Narayan Sahoo 4 years, 2 months ago

    CBSE > Class 09 > Mathematics
    • 2 answers

    Yogita Ingle 4 years, 2 months ago

    (a+b)3 - (a-b)3

    = [ a3 + b3 +3a2b +3ab2]  -[ a3 - b3 -3a2b +3ab2]

    = a3 + b3 +3a2b +3ab2 - a3 + b3 +3a2b - 3ab2

    =  b3 +3a2b + b3 +3a2b

    =  2b3 +6a2b

    3Thank You

    Laxmi Narayan Sahoo 4 years, 2 months ago

    a^3+b^3-a^3+b^3 =2b^3

    2Thank You

    ANSWER
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