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Simplifying f(d) = d2 + 8d + 8 Multiply f * d df = d2 + 8d + 8 Reorder the terms: df = 8 + 8d + d2 Solving df = 8 + 8d + d2 Solving for variable 'd'. Reorder the terms: -8 + -8d + df + -1d2 = 8 + 8d + d2 + -8 + -8d + -1d2 Reorder the terms: -8 + -8d + df + -1d2 = 8 + -8 + 8d + -8d + d2 + -1d2 Combine like terms: 8 + -8 = 0 -8 + -8d + df + -1d2 = 0 + 8d + -8d + d2 + -1d2 -8 + -8d + df + -1d2 = 8d + -8d + d2 + -1d2 Combine like terms: 8d + -8d = 0 -8 + -8d + df + -1d2 = 0 + d2 + -1d2 -8 + -8d + df + -1d2 = d2 + -1d2 Combine like terms: d2 + -1d2 = 0 -8 + -8d + df + -1d2 = 0 The solution to this equation could not be determined.
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