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Simplifying f(x) = x4 + -4x3 + 4x + -1 Multiply f * x fx = x4 + -4x3 + 4x + -1 Reorder the terms: fx = -1 + 4x + -4x3 + x4 Solving fx = -1 + 4x + -4x3 + 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 = -1x-1 + 4 + -4x2 + x3 Simplifying f = -1x-1 + 4 + -4x2 + x3 Reorder the terms: f = 4 + -1x-1 + -4x2 + x3
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