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Simplifying f(-1x) = -1x2 + -2(-1x) + 5 Remove parenthesis around (-1x) f * -1x = -1x2 + -2(-1x) + 5 Reorder the terms for easier multiplication: -1f * x = -1x2 + -2(-1x) + 5 Multiply f * x -1fx = -1x2 + -2(-1x) + 5 Remove parenthesis around (-1x) -1fx = -1x2 + -2 * -1x + 5 Multiply -2 * -1 -1fx = -1x2 + 2x + 5 Reorder the terms: -1fx = 5 + 2x + -1x2 Solving -1fx = 5 + 2x + -1x2 Solving for variable 'f'. Move all terms containing f to the left, all other terms to the right. Divide each side by '-1x'. f = -5x-1 + -2 + x Simplifying f = -5x-1 + -2 + x Reorder the terms: f = -2 + -5x-1 + x
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