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Simplifying f(-1x) = 1 + -1x2 + 3(-1x) + 8 Remove parenthesis around (-1x) f * -1x = 1 + -1x2 + 3(-1x) + 8 Reorder the terms for easier multiplication: -1f * x = 1 + -1x2 + 3(-1x) + 8 Multiply f * x -1fx = 1 + -1x2 + 3(-1x) + 8 Remove parenthesis around (-1x) -1fx = 1 + -1x2 + 3 * -1x + 8 Multiply 3 * -1 -1fx = 1 + -1x2 + -3x + 8 Reorder the terms: -1fx = 1 + 8 + -3x + -1x2 Combine like terms: 1 + 8 = 9 -1fx = 9 + -3x + -1x2 Solving -1fx = 9 + -3x + -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 = -9x-1 + 3 + x Simplifying f = -9x-1 + 3 + x Reorder the terms: f = 3 + -9x-1 + x
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