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Simplifying 78d2 + 63d = 0 Reorder the terms: 63d + 78d2 = 0 Solving 63d + 78d2 = 0 Solving for variable 'd'. Factor out the Greatest Common Factor (GCF), '3d'. 3d(21 + 26d) = 0 Ignore the factor 3.Subproblem 1
Set the factor 'd' equal to zero and attempt to solve: Simplifying d = 0 Solving d = 0 Move all terms containing d to the left, all other terms to the right. Simplifying d = 0Subproblem 2
Set the factor '(21 + 26d)' equal to zero and attempt to solve: Simplifying 21 + 26d = 0 Solving 21 + 26d = 0 Move all terms containing d to the left, all other terms to the right. Add '-21' to each side of the equation. 21 + -21 + 26d = 0 + -21 Combine like terms: 21 + -21 = 0 0 + 26d = 0 + -21 26d = 0 + -21 Combine like terms: 0 + -21 = -21 26d = -21 Divide each side by '26'. d = -0.8076923077 Simplifying d = -0.8076923077Solution
d = {0, -0.8076923077}
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