2x^2-3x+6+2x(x-1)-2=180

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Solution for 2x^2-3x+6+2x(x-1)-2=180 equation:


Simplifying
2x2 + -3x + 6 + 2x(x + -1) + -2 = 180

Reorder the terms:
2x2 + -3x + 6 + 2x(-1 + x) + -2 = 180
2x2 + -3x + 6 + (-1 * 2x + x * 2x) + -2 = 180
2x2 + -3x + 6 + (-2x + 2x2) + -2 = 180

Reorder the terms:
6 + -2 + -3x + -2x + 2x2 + 2x2 = 180

Combine like terms: 6 + -2 = 4
4 + -3x + -2x + 2x2 + 2x2 = 180

Combine like terms: -3x + -2x = -5x
4 + -5x + 2x2 + 2x2 = 180

Combine like terms: 2x2 + 2x2 = 4x2
4 + -5x + 4x2 = 180

Solving
4 + -5x + 4x2 = 180

Solving for variable 'x'.

Reorder the terms:
4 + -180 + -5x + 4x2 = 180 + -180

Combine like terms: 4 + -180 = -176
-176 + -5x + 4x2 = 180 + -180

Combine like terms: 180 + -180 = 0
-176 + -5x + 4x2 = 0

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

Divide each side by '4'.
-44 + -1.25x + x2 = 0

Move the constant term to the right:

Add '44' to each side of the equation.
-44 + -1.25x + 44 + x2 = 0 + 44

Reorder the terms:
-44 + 44 + -1.25x + x2 = 0 + 44

Combine like terms: -44 + 44 = 0
0 + -1.25x + x2 = 0 + 44
-1.25x + x2 = 0 + 44

Combine like terms: 0 + 44 = 44
-1.25x + x2 = 44

The x term is -1.25x.  Take half its coefficient (-0.625).
Square it (0.390625) and add it to both sides.

Add '0.390625' to each side of the equation.
-1.25x + 0.390625 + x2 = 44 + 0.390625

Reorder the terms:
0.390625 + -1.25x + x2 = 44 + 0.390625

Combine like terms: 44 + 0.390625 = 44.390625
0.390625 + -1.25x + x2 = 44.390625

Factor a perfect square on the left side:
(x + -0.625)(x + -0.625) = 44.390625

Calculate the square root of the right side: 6.662628986

Break this problem into two subproblems by setting 
(x + -0.625) equal to 6.662628986 and -6.662628986.

Subproblem 1

x + -0.625 = 6.662628986 Simplifying x + -0.625 = 6.662628986 Reorder the terms: -0.625 + x = 6.662628986 Solving -0.625 + x = 6.662628986 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '0.625' to each side of the equation. -0.625 + 0.625 + x = 6.662628986 + 0.625 Combine like terms: -0.625 + 0.625 = 0.000 0.000 + x = 6.662628986 + 0.625 x = 6.662628986 + 0.625 Combine like terms: 6.662628986 + 0.625 = 7.287628986 x = 7.287628986 Simplifying x = 7.287628986

Subproblem 2

x + -0.625 = -6.662628986 Simplifying x + -0.625 = -6.662628986 Reorder the terms: -0.625 + x = -6.662628986 Solving -0.625 + x = -6.662628986 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '0.625' to each side of the equation. -0.625 + 0.625 + x = -6.662628986 + 0.625 Combine like terms: -0.625 + 0.625 = 0.000 0.000 + x = -6.662628986 + 0.625 x = -6.662628986 + 0.625 Combine like terms: -6.662628986 + 0.625 = -6.037628986 x = -6.037628986 Simplifying x = -6.037628986

Solution

The solution to the problem is based on the solutions from the subproblems. x = {7.287628986, -6.037628986}

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