-2x^2+4x+5=-1

Solution for -2x^2+4x+5=-1 equation:

Simplifying
-2x2 + 4x + 5 = -1

Reorder the terms:
5 + 4x + -2x2 = -1

Solving
5 + 4x + -2x2 = -1

Solving for variable 'x'.

Reorder the terms:
5 + 1 + 4x + -2x2 = -1 + 1

Combine like terms: 5 + 1 = 6
6 + 4x + -2x2 = -1 + 1

Combine like terms: -1 + 1 = 0
6 + 4x + -2x2 = 0

Factor out the Greatest Common Factor (GCF), '2'.
2(3 + 2x + -1x2) = 0

Factor a trinomial.
2((3 + -1x)(1 + x)) = 0

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

Simplifying
3 + -1x = 0

Solving
3 + -1x = 0

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

Add '-3' to each side of the equation.
3 + -3 + -1x = 0 + -3

Combine like terms: 3 + -3 = 0
0 + -1x = 0 + -3
-1x = 0 + -3

Combine like terms: 0 + -3 = -3
-1x = -3

Divide each side by '-1'.
x = 3

Simplifying
x = 3
Subproblem 2
Set the factor '(1 + x)' equal to zero and attempt to solve:

Simplifying
1 + x = 0

Solving
1 + x = 0

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

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

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

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

Simplifying
x = -1
Solution
x = {3, -1}