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