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Simplifying f(x) = x4 + -4x3 + -8x2 + 1 Multiply f * x fx = x4 + -4x3 + -8x2 + 1 Reorder the terms: fx = 1 + -8x2 + -4x3 + x4 Solving fx = 1 + -8x2 + -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 = x-1 + -8x + -4x2 + x3 Simplifying f = x-1 + -8x + -4x2 + x3
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