4x^2-8x-100=-4

Solution for 4x^2-8x-100=-4 equation:

Simplifying
4x2 + -8x + -100 = -4

Reorder the terms:
-100 + -8x + 4x2 = -4

Solving
-100 + -8x + 4x2 = -4

Solving for variable 'x'.

Reorder the terms:
-100 + 4 + -8x + 4x2 = -4 + 4

Combine like terms: -100 + 4 = -96
-96 + -8x + 4x2 = -4 + 4

Combine like terms: -4 + 4 = 0
-96 + -8x + 4x2 = 0

Factor out the Greatest Common Factor (GCF), '4'.
4(-24 + -2x + x2) = 0

Factor a trinomial.
4((-4 + -1x)(6 + -1x)) = 0

Ignore the factor 4.
Subproblem 1
Set the factor '(-4 + -1x)' equal to zero and attempt to solve:

Simplifying
-4 + -1x = 0

Solving
-4 + -1x = 0

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

Add '4' to each side of the equation.
-4 + 4 + -1x = 0 + 4

Combine like terms: -4 + 4 = 0
0 + -1x = 0 + 4
-1x = 0 + 4

Combine like terms: 0 + 4 = 4
-1x = 4

Divide each side by '-1'.
x = -4

Simplifying
x = -4
Subproblem 2
Set the factor '(6 + -1x)' equal to zero and attempt to solve:

Simplifying
6 + -1x = 0

Solving
6 + -1x = 0

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

Add '-6' to each side of the equation.
6 + -6 + -1x = 0 + -6

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

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

Divide each side by '-1'.
x = 6

Simplifying
x = 6
Solution
x = {-4, 6}