6d*d-5d-6=0

Solution for 6d*d-5d-6=0 equation:

Simplifying
6d * d + -5d + -6 = 0

Multiply d * d
6d2 + -5d + -6 = 0

Reorder the terms:
-6 + -5d + 6d2 = 0

Solving
-6 + -5d + 6d2 = 0

Solving for variable 'd'.

Factor a trinomial.
(-2 + -3d)(3 + -2d) = 0

Subproblem 1
Set the factor '(-2 + -3d)' equal to zero and attempt to solve:

Simplifying
-2 + -3d = 0

Solving
-2 + -3d = 0

Move all terms containing d to the left, all other terms to the right.

Add '2' to each side of the equation.
-2 + 2 + -3d = 0 + 2

Combine like terms: -2 + 2 = 0
0 + -3d = 0 + 2
-3d = 0 + 2

Combine like terms: 0 + 2 = 2
-3d = 2

Divide each side by '-3'.
d = -0.6666666667

Simplifying
d = -0.6666666667
Subproblem 2
Set the factor '(3 + -2d)' equal to zero and attempt to solve:

Simplifying
3 + -2d = 0

Solving
3 + -2d = 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 + -2d = 0 + -3

Combine like terms: 3 + -3 = 0
0 + -2d = 0 + -3
-2d = 0 + -3

Combine like terms: 0 + -3 = -3
-2d = -3

Divide each side by '-2'.
d = 1.5

Simplifying
d = 1.5
Solution
d = {-0.6666666667, 1.5}