lizvethcarrillo lizvethcarrillo

14-06-2018
Mathematics

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Is x + 10 a factor of the function f(x) = x3 − 75x + 250? Explain.

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sqdancefan sqdancefan

14-06-2018

Yes.

f(-10) = 0 is sufficient to tell you (x+10) is a factor.

The full factorization is
f(x) = (x+10)(x-5)²

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