1+1+x+1+2x+x^2=3.1156

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Solution for 1+1+x+1+2x+x^2=3.1156 equation:


Simplifying
1 + 1 + x + 1 + 2x + x2 = 3.1156

Reorder the terms:
1 + 1 + 1 + x + 2x + x2 = 3.1156

Combine like terms: 1 + 1 = 2
2 + 1 + x + 2x + x2 = 3.1156

Combine like terms: 2 + 1 = 3
3 + x + 2x + x2 = 3.1156

Combine like terms: x + 2x = 3x
3 + 3x + x2 = 3.1156

Solving
3 + 3x + x2 = 3.1156

Solving for variable 'x'.

Reorder the terms:
3 + -3.1156 + 3x + x2 = 3.1156 + -3.1156

Combine like terms: 3 + -3.1156 = -0.1156
-0.1156 + 3x + x2 = 3.1156 + -3.1156

Combine like terms: 3.1156 + -3.1156 = 0.0000
-0.1156 + 3x + x2 = 0.0000

Begin completing the square.

Move the constant term to the right:

Add '0.1156' to each side of the equation.
-0.1156 + 3x + 0.1156 + x2 = 0.0000 + 0.1156

Reorder the terms:
-0.1156 + 0.1156 + 3x + x2 = 0.0000 + 0.1156

Combine like terms: -0.1156 + 0.1156 = 0.0000
0.0000 + 3x + x2 = 0.0000 + 0.1156
3x + x2 = 0.0000 + 0.1156

Combine like terms: 0.0000 + 0.1156 = 0.1156
3x + x2 = 0.1156

The x term is 3x.  Take half its coefficient (1.5).
Square it (2.25) and add it to both sides.

Add '2.25' to each side of the equation.
3x + 2.25 + x2 = 0.1156 + 2.25

Reorder the terms:
2.25 + 3x + x2 = 0.1156 + 2.25

Combine like terms: 0.1156 + 2.25 = 2.3656
2.25 + 3x + x2 = 2.3656

Factor a perfect square on the left side:
(x + 1.5)(x + 1.5) = 2.3656

Calculate the square root of the right side: 1.538050714

Break this problem into two subproblems by setting 
(x + 1.5) equal to 1.538050714 and -1.538050714.

Subproblem 1

x + 1.5 = 1.538050714 Simplifying x + 1.5 = 1.538050714 Reorder the terms: 1.5 + x = 1.538050714 Solving 1.5 + x = 1.538050714 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-1.5' to each side of the equation. 1.5 + -1.5 + x = 1.538050714 + -1.5 Combine like terms: 1.5 + -1.5 = 0.0 0.0 + x = 1.538050714 + -1.5 x = 1.538050714 + -1.5 Combine like terms: 1.538050714 + -1.5 = 0.038050714 x = 0.038050714 Simplifying x = 0.038050714

Subproblem 2

x + 1.5 = -1.538050714 Simplifying x + 1.5 = -1.538050714 Reorder the terms: 1.5 + x = -1.538050714 Solving 1.5 + x = -1.538050714 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-1.5' to each side of the equation. 1.5 + -1.5 + x = -1.538050714 + -1.5 Combine like terms: 1.5 + -1.5 = 0.0 0.0 + x = -1.538050714 + -1.5 x = -1.538050714 + -1.5 Combine like terms: -1.538050714 + -1.5 = -3.038050714 x = -3.038050714 Simplifying x = -3.038050714

Solution

The solution to the problem is based on the solutions from the subproblems. x = {0.038050714, -3.038050714}

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