5x^2+23x+23=0

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Solution for 5x^2+23x+23=0 equation:


Simplifying
5x2 + 23x + 23 = 0

Reorder the terms:
23 + 23x + 5x2 = 0

Solving
23 + 23x + 5x2 = 0

Solving for variable 'x'.

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

Divide each side by '5'.
4.6 + 4.6x + x2 = 0

Move the constant term to the right:

Add '-4.6' to each side of the equation.
4.6 + 4.6x + -4.6 + x2 = 0 + -4.6

Reorder the terms:
4.6 + -4.6 + 4.6x + x2 = 0 + -4.6

Combine like terms: 4.6 + -4.6 = 0.0
0.0 + 4.6x + x2 = 0 + -4.6
4.6x + x2 = 0 + -4.6

Combine like terms: 0 + -4.6 = -4.6
4.6x + x2 = -4.6

The x term is 4.6x.  Take half its coefficient (2.3).
Square it (5.29) and add it to both sides.

Add '5.29' to each side of the equation.
4.6x + 5.29 + x2 = -4.6 + 5.29

Reorder the terms:
5.29 + 4.6x + x2 = -4.6 + 5.29

Combine like terms: -4.6 + 5.29 = 0.69
5.29 + 4.6x + x2 = 0.69

Factor a perfect square on the left side:
(x + 2.3)(x + 2.3) = 0.69

Calculate the square root of the right side: 0.830662386

Break this problem into two subproblems by setting 
(x + 2.3) equal to 0.830662386 and -0.830662386.

Subproblem 1

x + 2.3 = 0.830662386 Simplifying x + 2.3 = 0.830662386 Reorder the terms: 2.3 + x = 0.830662386 Solving 2.3 + x = 0.830662386 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-2.3' to each side of the equation. 2.3 + -2.3 + x = 0.830662386 + -2.3 Combine like terms: 2.3 + -2.3 = 0.0 0.0 + x = 0.830662386 + -2.3 x = 0.830662386 + -2.3 Combine like terms: 0.830662386 + -2.3 = -1.469337614 x = -1.469337614 Simplifying x = -1.469337614

Subproblem 2

x + 2.3 = -0.830662386 Simplifying x + 2.3 = -0.830662386 Reorder the terms: 2.3 + x = -0.830662386 Solving 2.3 + x = -0.830662386 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-2.3' to each side of the equation. 2.3 + -2.3 + x = -0.830662386 + -2.3 Combine like terms: 2.3 + -2.3 = 0.0 0.0 + x = -0.830662386 + -2.3 x = -0.830662386 + -2.3 Combine like terms: -0.830662386 + -2.3 = -3.130662386 x = -3.130662386 Simplifying x = -3.130662386

Solution

The solution to the problem is based on the solutions from the subproblems. x = {-1.469337614, -3.130662386}

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