T^2-6T-7=0

Solution for T^2-6T-7=0 equation:

Simplifying
T2 + -6T + -7 = 0

Reorder the terms:
-7 + -6T + T2 = 0

Solving
-7 + -6T + T2 = 0

Solving for variable 'T'.

Factor a trinomial.
(-1 + -1T)(7 + -1T) = 0

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

Simplifying
-1 + -1T = 0

Solving
-1 + -1T = 0

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

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

Combine like terms: -1 + 1 = 0
0 + -1T = 0 + 1
-1T = 0 + 1

Combine like terms: 0 + 1 = 1
-1T = 1

Divide each side by '-1'.
T = -1

Simplifying
T = -1
Subproblem 2
Set the factor '(7 + -1T)' equal to zero and attempt to solve:

Simplifying
7 + -1T = 0

Solving
7 + -1T = 0

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

Add '-7' to each side of the equation.
7 + -7 + -1T = 0 + -7

Combine like terms: 7 + -7 = 0
0 + -1T = 0 + -7
-1T = 0 + -7

Combine like terms: 0 + -7 = -7
-1T = -7

Divide each side by '-1'.
T = 7

Simplifying
T = 7
Solution
T = {-1, 7}