2x^2+x=179

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Solution for 2x^2+x=179 equation:


Simplifying
2x2 + x = 179

Reorder the terms:
x + 2x2 = 179

Solving
x + 2x2 = 179

Solving for variable 'x'.

Reorder the terms:
-179 + x + 2x2 = 179 + -179

Combine like terms: 179 + -179 = 0
-179 + x + 2x2 = 0

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

Divide each side by '2'.
-89.5 + 0.5x + x2 = 0

Move the constant term to the right:

Add '89.5' to each side of the equation.
-89.5 + 0.5x + 89.5 + x2 = 0 + 89.5

Reorder the terms:
-89.5 + 89.5 + 0.5x + x2 = 0 + 89.5

Combine like terms: -89.5 + 89.5 = 0.0
0.0 + 0.5x + x2 = 0 + 89.5
0.5x + x2 = 0 + 89.5

Combine like terms: 0 + 89.5 = 89.5
0.5x + x2 = 89.5

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 = 89.5 + 0.25

Reorder the terms:
0.25 + 0.5x + x2 = 89.5 + 0.25

Combine like terms: 89.5 + 0.25 = 89.75
0.25 + 0.5x + x2 = 89.75

Factor a perfect square on the left side:
(x + 0.5)(x + 0.5) = 89.75

Calculate the square root of the right side: 9.473647661

Break this problem into two subproblems by setting 
(x + 0.5) equal to 9.473647661 and -9.473647661.

Subproblem 1

x + 0.5 = 9.473647661 Simplifying x + 0.5 = 9.473647661 Reorder the terms: 0.5 + x = 9.473647661 Solving 0.5 + x = 9.473647661 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 = 9.473647661 + -0.5 Combine like terms: 0.5 + -0.5 = 0.0 0.0 + x = 9.473647661 + -0.5 x = 9.473647661 + -0.5 Combine like terms: 9.473647661 + -0.5 = 8.973647661 x = 8.973647661 Simplifying x = 8.973647661

Subproblem 2

x + 0.5 = -9.473647661 Simplifying x + 0.5 = -9.473647661 Reorder the terms: 0.5 + x = -9.473647661 Solving 0.5 + x = -9.473647661 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 = -9.473647661 + -0.5 Combine like terms: 0.5 + -0.5 = 0.0 0.0 + x = -9.473647661 + -0.5 x = -9.473647661 + -0.5 Combine like terms: -9.473647661 + -0.5 = -9.973647661 x = -9.973647661 Simplifying x = -9.973647661

Solution

The solution to the problem is based on the solutions from the subproblems. x = {8.973647661, -9.973647661}

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