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Simplifying f(x) = x3 + -3x2 + 25 + -75 Multiply f * x fx = x3 + -3x2 + 25 + -75 Reorder the terms: fx = 25 + -75 + -3x2 + x3 Combine like terms: 25 + -75 = -50 fx = -50 + -3x2 + x3 Solving fx = -50 + -3x2 + x3 Solving for variable 'f'. Move all terms containing f to the left, all other terms to the right. Divide each side by 'x'. f = -50x-1 + -3x + x2 Simplifying f = -50x-1 + -3x + x2
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