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Simplifying f(x) + -1 = x3 + -2x2 + x Multiply f * x fx + -1 = x3 + -2x2 + x Reorder the terms: -1 + fx = x3 + -2x2 + x Reorder the terms: -1 + fx = x + -2x2 + x3 Solving -1 + fx = x + -2x2 + x3 Solving for variable 'f'. Move all terms containing f to the left, all other terms to the right. Add '1' to each side of the equation. -1 + 1 + fx = x + -2x2 + 1 + x3 Combine like terms: -1 + 1 = 0 0 + fx = x + -2x2 + 1 + x3 fx = x + -2x2 + 1 + x3 Reorder the terms: fx = 1 + x + -2x2 + x3 Divide each side by 'x'. f = x-1 + 1 + -2x + x2 Simplifying f = x-1 + 1 + -2x + x2 Reorder the terms: f = 1 + x-1 + -2x + x2
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