(-1x)(-2-3x)-x=-3(-2-3)

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Solution for (-1x)(-2-3x)-x=-3(-2-3) equation:


Simplifying
(-1x)(-2 + -3x) + -1x = -3(-2 + -3)

Remove parenthesis around (-1x)
-1x(-2 + -3x) + -1x = -3(-2 + -3)
(-2 * -1x + -3x * -1x) + -1x = -3(-2 + -3)
(2x + 3x2) + -1x = -3(-2 + -3)

Reorder the terms:
2x + -1x + 3x2 = -3(-2 + -3)

Combine like terms: 2x + -1x = 1x
1x + 3x2 = -3(-2 + -3)

Combine like terms: -2 + -3 = -5
1x + 3x2 = -3(-5)

Multiply -3 * -5
1x + 3x2 = 15

Solving
1x + 3x2 = 15

Solving for variable 'x'.

Reorder the terms:
-15 + 1x + 3x2 = 15 + -15

Combine like terms: 15 + -15 = 0
-15 + 1x + 3x2 = 0

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

Divide each side by '3'.
-5 + 0.3333333333x + x2 = 0

Move the constant term to the right:

Add '5' to each side of the equation.
-5 + 0.3333333333x + 5 + x2 = 0 + 5

Reorder the terms:
-5 + 5 + 0.3333333333x + x2 = 0 + 5

Combine like terms: -5 + 5 = 0
0 + 0.3333333333x + x2 = 0 + 5
0.3333333333x + x2 = 0 + 5

Combine like terms: 0 + 5 = 5
0.3333333333x + x2 = 5

The x term is 0.3333333333x.  Take half its coefficient (0.1666666667).
Square it (0.02777777779) and add it to both sides.

Add '0.02777777779' to each side of the equation.
0.3333333333x + 0.02777777779 + x2 = 5 + 0.02777777779

Reorder the terms:
0.02777777779 + 0.3333333333x + x2 = 5 + 0.02777777779

Combine like terms: 5 + 0.02777777779 = 5.02777777779
0.02777777779 + 0.3333333333x + x2 = 5.02777777779

Factor a perfect square on the left side:
(x + 0.1666666667)(x + 0.1666666667) = 5.02777777779

Calculate the square root of the right side: 2.242270675

Break this problem into two subproblems by setting 
(x + 0.1666666667) equal to 2.242270675 and -2.242270675.

Subproblem 1

x + 0.1666666667 = 2.242270675 Simplifying x + 0.1666666667 = 2.242270675 Reorder the terms: 0.1666666667 + x = 2.242270675 Solving 0.1666666667 + x = 2.242270675 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-0.1666666667' to each side of the equation. 0.1666666667 + -0.1666666667 + x = 2.242270675 + -0.1666666667 Combine like terms: 0.1666666667 + -0.1666666667 = 0.0000000000 0.0000000000 + x = 2.242270675 + -0.1666666667 x = 2.242270675 + -0.1666666667 Combine like terms: 2.242270675 + -0.1666666667 = 2.0756040083 x = 2.0756040083 Simplifying x = 2.0756040083

Subproblem 2

x + 0.1666666667 = -2.242270675 Simplifying x + 0.1666666667 = -2.242270675 Reorder the terms: 0.1666666667 + x = -2.242270675 Solving 0.1666666667 + x = -2.242270675 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-0.1666666667' to each side of the equation. 0.1666666667 + -0.1666666667 + x = -2.242270675 + -0.1666666667 Combine like terms: 0.1666666667 + -0.1666666667 = 0.0000000000 0.0000000000 + x = -2.242270675 + -0.1666666667 x = -2.242270675 + -0.1666666667 Combine like terms: -2.242270675 + -0.1666666667 = -2.4089373417 x = -2.4089373417 Simplifying x = -2.4089373417

Solution

The solution to the problem is based on the solutions from the subproblems. x = {2.0756040083, -2.4089373417}

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