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4 October, 04:43

When 9x^2-100 is factored, it is equivalent to (3x-b) (3x+b). what is a value for b?

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  1. 4 October, 05:00
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    9x^2-100 is a perfect square

    if we factor 9x^2-100 = (3x-10) (3x+10)

    therefore b=10
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