-5x-5x(x-5)=-(-5x-x)-4

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


Simplifying
-5x + -5x(x + -5) = -1(-5x + -1x) + -4

Reorder the terms:
-5x + -5x(-5 + x) = -1(-5x + -1x) + -4
-5x + (-5 * -5x + x * -5x) = -1(-5x + -1x) + -4
-5x + (25x + -5x2) = -1(-5x + -1x) + -4

Combine like terms: -5x + 25x = 20x
20x + -5x2 = -1(-5x + -1x) + -4

Combine like terms: -5x + -1x = -6x
20x + -5x2 = -1(-6x) + -4

Remove parenthesis around (-6x)
20x + -5x2 = -1 * -6x + -4

Multiply -1 * -6
20x + -5x2 = 6x + -4

Reorder the terms:
20x + -5x2 = -4 + 6x

Solving
20x + -5x2 = -4 + 6x

Solving for variable 'x'.

Reorder the terms:
4 + 20x + -6x + -5x2 = -4 + 6x + 4 + -6x

Combine like terms: 20x + -6x = 14x
4 + 14x + -5x2 = -4 + 6x + 4 + -6x

Reorder the terms:
4 + 14x + -5x2 = -4 + 4 + 6x + -6x

Combine like terms: -4 + 4 = 0
4 + 14x + -5x2 = 0 + 6x + -6x
4 + 14x + -5x2 = 6x + -6x

Combine like terms: 6x + -6x = 0
4 + 14x + -5x2 = 0

Begin completing the square.  Divide all terms by
-5 the coefficient of the squared term: 

Divide each side by '-5'.
-0.8 + -2.8x + x2 = 0

Move the constant term to the right:

Add '0.8' to each side of the equation.
-0.8 + -2.8x + 0.8 + x2 = 0 + 0.8

Reorder the terms:
-0.8 + 0.8 + -2.8x + x2 = 0 + 0.8

Combine like terms: -0.8 + 0.8 = 0.0
0.0 + -2.8x + x2 = 0 + 0.8
-2.8x + x2 = 0 + 0.8

Combine like terms: 0 + 0.8 = 0.8
-2.8x + x2 = 0.8

The x term is -2.8x.  Take half its coefficient (-1.4).
Square it (1.96) and add it to both sides.

Add '1.96' to each side of the equation.
-2.8x + 1.96 + x2 = 0.8 + 1.96

Reorder the terms:
1.96 + -2.8x + x2 = 0.8 + 1.96

Combine like terms: 0.8 + 1.96 = 2.76
1.96 + -2.8x + x2 = 2.76

Factor a perfect square on the left side:
(x + -1.4)(x + -1.4) = 2.76

Calculate the square root of the right side: 1.661324773

Break this problem into two subproblems by setting 
(x + -1.4) equal to 1.661324773 and -1.661324773.

Subproblem 1

x + -1.4 = 1.661324773 Simplifying x + -1.4 = 1.661324773 Reorder the terms: -1.4 + x = 1.661324773 Solving -1.4 + x = 1.661324773 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '1.4' to each side of the equation. -1.4 + 1.4 + x = 1.661324773 + 1.4 Combine like terms: -1.4 + 1.4 = 0.0 0.0 + x = 1.661324773 + 1.4 x = 1.661324773 + 1.4 Combine like terms: 1.661324773 + 1.4 = 3.061324773 x = 3.061324773 Simplifying x = 3.061324773

Subproblem 2

x + -1.4 = -1.661324773 Simplifying x + -1.4 = -1.661324773 Reorder the terms: -1.4 + x = -1.661324773 Solving -1.4 + x = -1.661324773 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '1.4' to each side of the equation. -1.4 + 1.4 + x = -1.661324773 + 1.4 Combine like terms: -1.4 + 1.4 = 0.0 0.0 + x = -1.661324773 + 1.4 x = -1.661324773 + 1.4 Combine like terms: -1.661324773 + 1.4 = -0.261324773 x = -0.261324773 Simplifying x = -0.261324773

Solution

The solution to the problem is based on the solutions from the subproblems. x = {3.061324773, -0.261324773}

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