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2 July, 14:09

Which expression is equivalent to 36x^2-100

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  1. 2 July, 14:34
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    This is a common form of equation known as a difference of squares, it always factors as follows ...

    (a^2-b^2) = (a+b) (a-b) in this case:

    first let's factor out 4 ...

    4 (9x^2-25) now factor the difference of squares ...

    4 (3x+5) (3x-5)
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