(x^2+2x-11)=4

Solution for (x^2+2x-11)=4 equation:

Simplifying
(x2 + 2x + -11) = 4

Reorder the terms:
(-11 + 2x + x2) = 4

Remove parenthesis around (-11 + 2x + x2)
-11 + 2x + x2 = 4

Solving
-11 + 2x + x2 = 4

Solving for variable 'x'.

Reorder the terms:
-11 + -4 + 2x + x2 = 4 + -4

Combine like terms: -11 + -4 = -15
-15 + 2x + x2 = 4 + -4

Combine like terms: 4 + -4 = 0
-15 + 2x + x2 = 0

Factor a trinomial.
(-5 + -1x)(3 + -1x) = 0

Subproblem 1
Set the factor '(-5 + -1x)' equal to zero and attempt to solve:

Simplifying
-5 + -1x = 0

Solving
-5 + -1x = 0

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

Add '5' to each side of the equation.
-5 + 5 + -1x = 0 + 5

Combine like terms: -5 + 5 = 0
0 + -1x = 0 + 5
-1x = 0 + 5

Combine like terms: 0 + 5 = 5
-1x = 5

Divide each side by '-1'.
x = -5

Simplifying
x = -5
Subproblem 2
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
Solution
x = {-5, 3}