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f x x 3 5x 5 evaluate f 1

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f(x)=x^(3)-5x+5, evaluate f(-1)

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Answer to a math question f(x)=x^(3)-5x+5, evaluate f(-1)

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f(-1)=(-1)³-5(-1)+5=-1+5+5=9

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solve R the following equation 4 x squared - 35 - 9 over x squared is equal to 0