12=t^2-4t

Solution for 12=t^2-4t equation:

Simplifying
12 = t2 + -4t

Reorder the terms:
12 = -4t + t2

Solving
12 = -4t + t2

Solving for variable 't'.

Reorder the terms:
12 + 4t + -1t2 = -4t + 4t + t2 + -1t2

Combine like terms: -4t + 4t = 0
12 + 4t + -1t2 = 0 + t2 + -1t2
12 + 4t + -1t2 = t2 + -1t2

Combine like terms: t2 + -1t2 = 0
12 + 4t + -1t2 = 0

Factor a trinomial.
(6 + -1t)(2 + t) = 0

Subproblem 1
Set the factor '(6 + -1t)' equal to zero and attempt to solve:

Simplifying
6 + -1t = 0

Solving
6 + -1t = 0

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

Add '-6' to each side of the equation.
6 + -6 + -1t = 0 + -6

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

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

Divide each side by '-1'.
t = 6

Simplifying
t = 6
Subproblem 2
Set the factor '(2 + t)' equal to zero and attempt to solve:

Simplifying
2 + t = 0

Solving
2 + t = 0

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

Add '-2' to each side of the equation.
2 + -2 + t = 0 + -2

Combine like terms: 2 + -2 = 0
0 + t = 0 + -2
t = 0 + -2

Combine like terms: 0 + -2 = -2
t = -2

Simplifying
t = -2
Solution
t = {6, -2}