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Simplifying 12d2 + 7d + -12 = 0 Reorder the terms: -12 + 7d + 12d2 = 0 Solving -12 + 7d + 12d2 = 0 Solving for variable 'd'. Factor a trinomial. (-4 + -3d)(3 + -4d) = 0Subproblem 1
Set the factor '(-4 + -3d)' equal to zero and attempt to solve: Simplifying -4 + -3d = 0 Solving -4 + -3d = 0 Move all terms containing d to the left, all other terms to the right. Add '4' to each side of the equation. -4 + 4 + -3d = 0 + 4 Combine like terms: -4 + 4 = 0 0 + -3d = 0 + 4 -3d = 0 + 4 Combine like terms: 0 + 4 = 4 -3d = 4 Divide each side by '-3'. d = -1.333333333 Simplifying d = -1.333333333Subproblem 2
Set the factor '(3 + -4d)' equal to zero and attempt to solve: Simplifying 3 + -4d = 0 Solving 3 + -4d = 0 Move all terms containing d to the left, all other terms to the right. Add '-3' to each side of the equation. 3 + -3 + -4d = 0 + -3 Combine like terms: 3 + -3 = 0 0 + -4d = 0 + -3 -4d = 0 + -3 Combine like terms: 0 + -3 = -3 -4d = -3 Divide each side by '-4'. d = 0.75 Simplifying d = 0.75Solution
d = {-1.333333333, 0.75}
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