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Mathematics, 16.12.2021 07:50 sadie960

Given f(x)=x^3+9x+kf(x)=x 3 +9x+k, and x-1x−1 is a factor of f(x)f(x), then what is the value of kk?

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Given f(x)=x^3+9x+kf(x)=x 3 +9x+k, and x-1x−1 is a factor of f(x)f(x), then what is the value of kk?...
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