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14 November, 01:59

4y^2-16 is that a square of the sum, square of a difference, a product of a sum and difference, or not a special product?

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  1. 14 November, 05:50
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    Das is differnce of 2 perfect squaes

    for

    a^2-b^2, that factors to (a-b) (a+b0

    4y^2 = (2y) ^2

    16=4^2

    (2y) ^2 - (4) ^2 = (2y-4) (2y+4)

    square of a differnce
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