12d^2-31d+20=0

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Solution for 12d^2-31d+20=0 equation:


Simplifying
12d2 + -31d + 20 = 0

Reorder the terms:
20 + -31d + 12d2 = 0

Solving
20 + -31d + 12d2 = 0

Solving for variable 'd'.

Factor a trinomial.
(5 + -4d)(4 + -3d) = 0

Subproblem 1

Set the factor '(5 + -4d)' equal to zero and attempt to solve: Simplifying 5 + -4d = 0 Solving 5 + -4d = 0 Move all terms containing d to the left, all other terms to the right. Add '-5' to each side of the equation. 5 + -5 + -4d = 0 + -5 Combine like terms: 5 + -5 = 0 0 + -4d = 0 + -5 -4d = 0 + -5 Combine like terms: 0 + -5 = -5 -4d = -5 Divide each side by '-4'. d = 1.25 Simplifying d = 1.25

Subproblem 2

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 = 1.333333333

Solution

d = {1.25, 1.333333333}

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