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7 September, 06:33

If x is equal to a square + b square, y is equal to a square - b square, compute xy

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  1. 7 September, 06:57
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    a^4 - b^4

    Step-by-step explanation:

    x = a^2 + b^2

    y = a^2 - b^2

    xy = (a^2 + b^2) (a^2 - b^2)

    xy = a^4 + (a^2 b^2) - (a^2 b^2) - b^4

    xy = a^4 - b^4
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