12d^2-71d-6=0

Solution for 12d^2-71d-6=0 equation:

Simplifying
12d2 + -71d + -6 = 0

Reorder the terms:
-6 + -71d + 12d2 = 0

Solving
-6 + -71d + 12d2 = 0

Solving for variable 'd'.

Factor a trinomial.
(-1 + -12d)(6 + -1d) = 0

Subproblem 1
Set the factor '(-1 + -12d)' equal to zero and attempt to solve:

Simplifying
-1 + -12d = 0

Solving
-1 + -12d = 0

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

Add '1' to each side of the equation.
-1 + 1 + -12d = 0 + 1

Combine like terms: -1 + 1 = 0
0 + -12d = 0 + 1
-12d = 0 + 1

Combine like terms: 0 + 1 = 1
-12d = 1

Divide each side by '-12'.
d = -0.08333333333

Simplifying
d = -0.08333333333
Subproblem 2
Set the factor '(6 + -1d)' equal to zero and attempt to solve:

Simplifying
6 + -1d = 0

Solving
6 + -1d = 0

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

Add '-6' to each side of the equation.
6 + -6 + -1d = 0 + -6

Combine like terms: 6 + -6 = 0
0 + -1d = 0 + -6
-1d = 0 + -6

Combine like terms: 0 + -6 = -6
-1d = -6

Divide each side by '-1'.
d = 6

Simplifying
d = 6
Solution
d = {-0.08333333333, 6}