x*x+1+4x+3+2x*2x+3x-2=180

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Solution for x*x+1+4x+3+2x*2x+3x-2=180 equation:


Simplifying
x * x + 1 + 4x + 3 + 2x * 2x + 3x + -2 = 180

Multiply x * x
x2 + 1 + 4x + 3 + 2x * 2x + 3x + -2 = 180

Reorder the terms for easier multiplication:
x2 + 1 + 4x + 3 + 2 * 2x * x + 3x + -2 = 180

Multiply 2 * 2
x2 + 1 + 4x + 3 + 4x * x + 3x + -2 = 180

Multiply x * x
x2 + 1 + 4x + 3 + 4x2 + 3x + -2 = 180

Reorder the terms:
1 + 3 + -2 + 4x + 3x + x2 + 4x2 = 180

Combine like terms: 1 + 3 = 4
4 + -2 + 4x + 3x + x2 + 4x2 = 180

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

Combine like terms: 4x + 3x = 7x
2 + 7x + x2 + 4x2 = 180

Combine like terms: x2 + 4x2 = 5x2
2 + 7x + 5x2 = 180

Solving
2 + 7x + 5x2 = 180

Solving for variable 'x'.

Reorder the terms:
2 + -180 + 7x + 5x2 = 180 + -180

Combine like terms: 2 + -180 = -178
-178 + 7x + 5x2 = 180 + -180

Combine like terms: 180 + -180 = 0
-178 + 7x + 5x2 = 0

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

Divide each side by '5'.
-35.6 + 1.4x + x2 = 0

Move the constant term to the right:

Add '35.6' to each side of the equation.
-35.6 + 1.4x + 35.6 + x2 = 0 + 35.6

Reorder the terms:
-35.6 + 35.6 + 1.4x + x2 = 0 + 35.6

Combine like terms: -35.6 + 35.6 = 0.0
0.0 + 1.4x + x2 = 0 + 35.6
1.4x + x2 = 0 + 35.6

Combine like terms: 0 + 35.6 = 35.6
1.4x + x2 = 35.6

The x term is 1.4x.  Take half its coefficient (0.7).
Square it (0.49) and add it to both sides.

Add '0.49' to each side of the equation.
1.4x + 0.49 + x2 = 35.6 + 0.49

Reorder the terms:
0.49 + 1.4x + x2 = 35.6 + 0.49

Combine like terms: 35.6 + 0.49 = 36.09
0.49 + 1.4x + x2 = 36.09

Factor a perfect square on the left side:
(x + 0.7)(x + 0.7) = 36.09

Calculate the square root of the right side: 6.007495318

Break this problem into two subproblems by setting 
(x + 0.7) equal to 6.007495318 and -6.007495318.

Subproblem 1

x + 0.7 = 6.007495318 Simplifying x + 0.7 = 6.007495318 Reorder the terms: 0.7 + x = 6.007495318 Solving 0.7 + x = 6.007495318 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-0.7' to each side of the equation. 0.7 + -0.7 + x = 6.007495318 + -0.7 Combine like terms: 0.7 + -0.7 = 0.0 0.0 + x = 6.007495318 + -0.7 x = 6.007495318 + -0.7 Combine like terms: 6.007495318 + -0.7 = 5.307495318 x = 5.307495318 Simplifying x = 5.307495318

Subproblem 2

x + 0.7 = -6.007495318 Simplifying x + 0.7 = -6.007495318 Reorder the terms: 0.7 + x = -6.007495318 Solving 0.7 + x = -6.007495318 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-0.7' to each side of the equation. 0.7 + -0.7 + x = -6.007495318 + -0.7 Combine like terms: 0.7 + -0.7 = 0.0 0.0 + x = -6.007495318 + -0.7 x = -6.007495318 + -0.7 Combine like terms: -6.007495318 + -0.7 = -6.707495318 x = -6.707495318 Simplifying x = -6.707495318

Solution

The solution to the problem is based on the solutions from the subproblems. x = {5.307495318, -6.707495318}

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