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Simplifying f(x) = 3x3 + -21x2 + 36x Multiply f * x fx = 3x3 + -21x2 + 36x Reorder the terms: fx = 36x + -21x2 + 3x3 Solving fx = 36x + -21x2 + 3x3 Solving for variable 'f'. Move all terms containing f to the left, all other terms to the right. Divide each side by 'x'. f = 36 + -21x + 3x2 Simplifying f = 36 + -21x + 3x2
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