-t^2-2t-2=0

Solution for -t^2-2t-2=0 equation:

Simplifying
-1t2 + -2t + -2 = 0

Reorder the terms:
-2 + -2t + -1t2 = 0

Solving
-2 + -2t + -1t2 = 0

Solving for variable 't'.

Factor out the Greatest Common Factor (GCF), '-1'.
-1(2 + 2t + t2) = 0

Ignore the factor -1.
Subproblem 1
Set the factor '(2 + 2t + t2)' equal to zero and attempt to solve:

Simplifying
2 + 2t + t2 = 0

Solving
2 + 2t + t2 = 0

Begin completing the square.

Move the constant term to the right:

Add '-2' to each side of the equation.
2 + 2t + -2 + t2 = 0 + -2

Reorder the terms:
2 + -2 + 2t + t2 = 0 + -2

Combine like terms: 2 + -2 = 0
0 + 2t + t2 = 0 + -2
2t + t2 = 0 + -2

Combine like terms: 0 + -2 = -2
2t + t2 = -2

The t term is 2t.  Take half its coefficient (1).
Square it (1) and add it to both sides.

Add '1' to each side of the equation.
2t + 1 + t2 = -2 + 1

Reorder the terms:
1 + 2t + t2 = -2 + 1

Combine like terms: -2 + 1 = -1
1 + 2t + t2 = -1

Factor a perfect square on the left side:
(t + 1)(t + 1) = -1

Can't calculate square root of the right side.

The solution to this equation could not be determined.

This subproblem is being ignored because a solution could not be determined.

The solution to this equation could not be determined.