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Simplifying f(x + 9) = x2 + 3x + 8 Reorder the terms: f(9 + x) = x2 + 3x + 8 (9 * f + x * f) = x2 + 3x + 8 (9f + fx) = x2 + 3x + 8 Reorder the terms: 9f + fx = 8 + 3x + x2 Solving 9f + fx = 8 + 3x + x2 Solving for variable 'f'. Move all terms containing f to the left, all other terms to the right. Reorder the terms: -8 + 9f + fx + -3x + -1x2 = 8 + 3x + x2 + -8 + -3x + -1x2 Reorder the terms: -8 + 9f + fx + -3x + -1x2 = 8 + -8 + 3x + -3x + x2 + -1x2 Combine like terms: 8 + -8 = 0 -8 + 9f + fx + -3x + -1x2 = 0 + 3x + -3x + x2 + -1x2 -8 + 9f + fx + -3x + -1x2 = 3x + -3x + x2 + -1x2 Combine like terms: 3x + -3x = 0 -8 + 9f + fx + -3x + -1x2 = 0 + x2 + -1x2 -8 + 9f + fx + -3x + -1x2 = x2 + -1x2 Combine like terms: x2 + -1x2 = 0 -8 + 9f + fx + -3x + -1x2 = 0 The solution to this equation could not be determined.
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