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Simplifying x2 + 8x + q = 0 Reorder the terms: q + 8x + x2 = 0 Solving q + 8x + x2 = 0 Solving for variable 'q'. Move all terms containing q to the left, all other terms to the right. Add '-8x' to each side of the equation. q + 8x + -8x + x2 = 0 + -8x Combine like terms: 8x + -8x = 0 q + 0 + x2 = 0 + -8x q + x2 = 0 + -8x Remove the zero: q + x2 = -8x Add '-1x2' to each side of the equation. q + x2 + -1x2 = -8x + -1x2 Combine like terms: x2 + -1x2 = 0 q + 0 = -8x + -1x2 q = -8x + -1x2 Simplifying q = -8x + -1x2
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