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Simplifying f(x + 5) = x3 + -1x2 + -21x + 45 Reorder the terms: f(5 + x) = x3 + -1x2 + -21x + 45 (5 * f + x * f) = x3 + -1x2 + -21x + 45 (5f + fx) = x3 + -1x2 + -21x + 45 Reorder the terms: 5f + fx = 45 + -21x + -1x2 + x3 Solving 5f + fx = 45 + -21x + -1x2 + x3 Solving for variable 'f'. Move all terms containing f to the left, all other terms to the right. Reorder the terms: -45 + 5f + fx + 21x + x2 + -1x3 = 45 + -21x + -1x2 + x3 + -45 + 21x + x2 + -1x3 Reorder the terms: -45 + 5f + fx + 21x + x2 + -1x3 = 45 + -45 + -21x + 21x + -1x2 + x2 + x3 + -1x3 Combine like terms: 45 + -45 = 0 -45 + 5f + fx + 21x + x2 + -1x3 = 0 + -21x + 21x + -1x2 + x2 + x3 + -1x3 -45 + 5f + fx + 21x + x2 + -1x3 = -21x + 21x + -1x2 + x2 + x3 + -1x3 Combine like terms: -21x + 21x = 0 -45 + 5f + fx + 21x + x2 + -1x3 = 0 + -1x2 + x2 + x3 + -1x3 -45 + 5f + fx + 21x + x2 + -1x3 = -1x2 + x2 + x3 + -1x3 Combine like terms: -1x2 + x2 = 0 -45 + 5f + fx + 21x + x2 + -1x3 = 0 + x3 + -1x3 -45 + 5f + fx + 21x + x2 + -1x3 = x3 + -1x3 Combine like terms: x3 + -1x3 = 0 -45 + 5f + fx + 21x + x2 + -1x3 = 0 The solution to this equation could not be determined.
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