2x^2+x=352

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Solution for 2x^2+x=352 equation:


Simplifying
2x2 + x = 352

Reorder the terms:
x + 2x2 = 352

Solving
x + 2x2 = 352

Solving for variable 'x'.

Reorder the terms:
-352 + x + 2x2 = 352 + -352

Combine like terms: 352 + -352 = 0
-352 + x + 2x2 = 0

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

Divide each side by '2'.
-176 + 0.5x + x2 = 0

Move the constant term to the right:

Add '176' to each side of the equation.
-176 + 0.5x + 176 + x2 = 0 + 176

Reorder the terms:
-176 + 176 + 0.5x + x2 = 0 + 176

Combine like terms: -176 + 176 = 0
0 + 0.5x + x2 = 0 + 176
0.5x + x2 = 0 + 176

Combine like terms: 0 + 176 = 176
0.5x + x2 = 176

The x term is x.  Take half its coefficient (0.5).
Square it (0.25) and add it to both sides.

Add '0.25' to each side of the equation.
0.5x + 0.25 + x2 = 176 + 0.25

Reorder the terms:
0.25 + 0.5x + x2 = 176 + 0.25

Combine like terms: 176 + 0.25 = 176.25
0.25 + 0.5x + x2 = 176.25

Factor a perfect square on the left side:
(x + 0.5)(x + 0.5) = 176.25

Calculate the square root of the right side: 13.275918047

Break this problem into two subproblems by setting 
(x + 0.5) equal to 13.275918047 and -13.275918047.

Subproblem 1

x + 0.5 = 13.275918047 Simplifying x + 0.5 = 13.275918047 Reorder the terms: 0.5 + x = 13.275918047 Solving 0.5 + x = 13.275918047 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-0.5' to each side of the equation. 0.5 + -0.5 + x = 13.275918047 + -0.5 Combine like terms: 0.5 + -0.5 = 0.0 0.0 + x = 13.275918047 + -0.5 x = 13.275918047 + -0.5 Combine like terms: 13.275918047 + -0.5 = 12.775918047 x = 12.775918047 Simplifying x = 12.775918047

Subproblem 2

x + 0.5 = -13.275918047 Simplifying x + 0.5 = -13.275918047 Reorder the terms: 0.5 + x = -13.275918047 Solving 0.5 + x = -13.275918047 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-0.5' to each side of the equation. 0.5 + -0.5 + x = -13.275918047 + -0.5 Combine like terms: 0.5 + -0.5 = 0.0 0.0 + x = -13.275918047 + -0.5 x = -13.275918047 + -0.5 Combine like terms: -13.275918047 + -0.5 = -13.775918047 x = -13.775918047 Simplifying x = -13.775918047

Solution

The solution to the problem is based on the solutions from the subproblems. x = {12.775918047, -13.775918047}

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