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Simplifying x2 + dx + 49 = 0 Reorder the terms: 49 + dx + x2 = 0 Solving 49 + dx + x2 = 0 Solving for variable 'd'. Move all terms containing d to the left, all other terms to the right. Add '-49' to each side of the equation. 49 + dx + -49 + x2 = 0 + -49 Reorder the terms: 49 + -49 + dx + x2 = 0 + -49 Combine like terms: 49 + -49 = 0 0 + dx + x2 = 0 + -49 dx + x2 = 0 + -49 Combine like terms: 0 + -49 = -49 dx + x2 = -49 Add '-1x2' to each side of the equation. dx + x2 + -1x2 = -49 + -1x2 Combine like terms: x2 + -1x2 = 0 dx + 0 = -49 + -1x2 dx = -49 + -1x2 Divide each side by 'x'. d = -49x-1 + -1x Simplifying d = -49x-1 + -1x
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