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10 January, 19:38

What is (x-5) (x+5) ?

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  1. 10 January, 19:49
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    Hey there, we are going to mutliply polynomials, (x-5) = (x+-5) and (x+5) = (x+5), (x) (x) + (x) (5) + (-5) (x) + (-5) (5) = x²+5x-5x-25=x²-25. Therefore, (x-5) (x+5) = x²-25
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