-2(2-2x)-4x(x-5)=-24

Solution for -2(2-2x)-4x(x-5)=-24 equation:

Simplifying
-2(2 + -2x) + -4x(x + -5) = -24
(2 * -2 + -2x * -2) + -4x(x + -5) = -24
(-4 + 4x) + -4x(x + -5) = -24

Reorder the terms:
-4 + 4x + -4x(-5 + x) = -24
-4 + 4x + (-5 * -4x + x * -4x) = -24
-4 + 4x + (20x + -4x2) = -24

Combine like terms: 4x + 20x = 24x
-4 + 24x + -4x2 = -24

Solving
-4 + 24x + -4x2 = -24

Solving for variable 'x'.

Reorder the terms:
-4 + 24 + 24x + -4x2 = -24 + 24

Combine like terms: -4 + 24 = 20
20 + 24x + -4x2 = -24 + 24

Combine like terms: -24 + 24 = 0
20 + 24x + -4x2 = 0

Factor out the Greatest Common Factor (GCF), '4'.
4(5 + 6x + -1x2) = 0

Ignore the factor 4.
Subproblem 1
Set the factor '(5 + 6x + -1x2)' equal to zero and attempt to solve:

Simplifying
5 + 6x + -1x2 = 0

Solving
5 + 6x + -1x2 = 0

Begin completing the square.  Divide all terms by
-1 the coefficient of the squared term: 

Divide each side by '-1'.
-5 + -6x + x2 = 0

Move the constant term to the right:

Add '5' to each side of the equation.
-5 + -6x + 5 + x2 = 0 + 5

Reorder the terms:
-5 + 5 + -6x + x2 = 0 + 5

Combine like terms: -5 + 5 = 0
0 + -6x + x2 = 0 + 5
-6x + x2 = 0 + 5

Combine like terms: 0 + 5 = 5
-6x + x2 = 5

The x term is -6x.  Take half its coefficient (-3).
Square it (9) and add it to both sides.

Add '9' to each side of the equation.
-6x + 9 + x2 = 5 + 9

Reorder the terms:
9 + -6x + x2 = 5 + 9

Combine like terms: 5 + 9 = 14
9 + -6x + x2 = 14

Factor a perfect square on the left side:
(x + -3)(x + -3) = 14

Calculate the square root of the right side: 3.741657387

Break this problem into two subproblems by setting 
(x + -3) equal to 3.741657387 and -3.741657387.

Subproblem 1
x + -3 = 3.741657387

Simplifying
x + -3 = 3.741657387

Reorder the terms:
-3 + x = 3.741657387

Solving
-3 + x = 3.741657387

Solving for variable 'x'.

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

Add '3' to each side of the equation.
-3 + 3 + x = 3.741657387 + 3

Combine like terms: -3 + 3 = 0
0 + x = 3.741657387 + 3
x = 3.741657387 + 3

Combine like terms: 3.741657387 + 3 = 6.741657387
x = 6.741657387

Simplifying
x = 6.741657387

Subproblem 2
x + -3 = -3.741657387

Simplifying
x + -3 = -3.741657387

Reorder the terms:
-3 + x = -3.741657387

Solving
-3 + x = -3.741657387

Solving for variable 'x'.

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

Add '3' to each side of the equation.
-3 + 3 + x = -3.741657387 + 3

Combine like terms: -3 + 3 = 0
0 + x = -3.741657387 + 3
x = -3.741657387 + 3

Combine like terms: -3.741657387 + 3 = -0.741657387
x = -0.741657387

Simplifying
x = -0.741657387

Solution
The solution to the problem is based on the solutions
from the subproblems.
x = {6.741657387, -0.741657387}
Solution
x = {6.741657387, -0.741657387}