5x^2+2x=569

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Solution for 5x^2+2x=569 equation:


Simplifying
5x2 + 2x = 569

Reorder the terms:
2x + 5x2 = 569

Solving
2x + 5x2 = 569

Solving for variable 'x'.

Reorder the terms:
-569 + 2x + 5x2 = 569 + -569

Combine like terms: 569 + -569 = 0
-569 + 2x + 5x2 = 0

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

Divide each side by '5'.
-113.8 + 0.4x + x2 = 0

Move the constant term to the right:

Add '113.8' to each side of the equation.
-113.8 + 0.4x + 113.8 + x2 = 0 + 113.8

Reorder the terms:
-113.8 + 113.8 + 0.4x + x2 = 0 + 113.8

Combine like terms: -113.8 + 113.8 = 0.0
0.0 + 0.4x + x2 = 0 + 113.8
0.4x + x2 = 0 + 113.8

Combine like terms: 0 + 113.8 = 113.8
0.4x + x2 = 113.8

The x term is 0.4x.  Take half its coefficient (0.2).
Square it (0.04) and add it to both sides.

Add '0.04' to each side of the equation.
0.4x + 0.04 + x2 = 113.8 + 0.04

Reorder the terms:
0.04 + 0.4x + x2 = 113.8 + 0.04

Combine like terms: 113.8 + 0.04 = 113.84
0.04 + 0.4x + x2 = 113.84

Factor a perfect square on the left side:
(x + 0.2)(x + 0.2) = 113.84

Calculate the square root of the right side: 10.669582935

Break this problem into two subproblems by setting 
(x + 0.2) equal to 10.669582935 and -10.669582935.

Subproblem 1

x + 0.2 = 10.669582935 Simplifying x + 0.2 = 10.669582935 Reorder the terms: 0.2 + x = 10.669582935 Solving 0.2 + x = 10.669582935 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-0.2' to each side of the equation. 0.2 + -0.2 + x = 10.669582935 + -0.2 Combine like terms: 0.2 + -0.2 = 0.0 0.0 + x = 10.669582935 + -0.2 x = 10.669582935 + -0.2 Combine like terms: 10.669582935 + -0.2 = 10.469582935 x = 10.469582935 Simplifying x = 10.469582935

Subproblem 2

x + 0.2 = -10.669582935 Simplifying x + 0.2 = -10.669582935 Reorder the terms: 0.2 + x = -10.669582935 Solving 0.2 + x = -10.669582935 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-0.2' to each side of the equation. 0.2 + -0.2 + x = -10.669582935 + -0.2 Combine like terms: 0.2 + -0.2 = 0.0 0.0 + x = -10.669582935 + -0.2 x = -10.669582935 + -0.2 Combine like terms: -10.669582935 + -0.2 = -10.869582935 x = -10.869582935 Simplifying x = -10.869582935

Solution

The solution to the problem is based on the solutions from the subproblems. x = {10.469582935, -10.869582935}

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