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Simplifying f(x) = x4 + -3x3 + -40x2 Multiply f * x fx = x4 + -3x3 + -40x2 Reorder the terms: fx = -40x2 + -3x3 + x4 Solving fx = -40x2 + -3x3 + x4 Solving for variable 'f'. Move all terms containing f to the left, all other terms to the right. Divide each side by 'x'. f = -40x + -3x2 + x3 Simplifying f = -40x + -3x2 + x3
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