5x^2+23x+10=0

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Solution for 5x^2+23x+10=0 equation:


Simplifying
5x2 + 23x + 10 = 0

Reorder the terms:
10 + 23x + 5x2 = 0

Solving
10 + 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'.
2 + 4.6x + x2 = 0

Move the constant term to the right:

Add '-2' to each side of the equation.
2 + 4.6x + -2 + x2 = 0 + -2

Reorder the terms:
2 + -2 + 4.6x + x2 = 0 + -2

Combine like terms: 2 + -2 = 0
0 + 4.6x + x2 = 0 + -2
4.6x + x2 = 0 + -2

Combine like terms: 0 + -2 = -2
4.6x + x2 = -2

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 = -2 + 5.29

Reorder the terms:
5.29 + 4.6x + x2 = -2 + 5.29

Combine like terms: -2 + 5.29 = 3.29
5.29 + 4.6x + x2 = 3.29

Factor a perfect square on the left side:
(x + 2.3)(x + 2.3) = 3.29

Calculate the square root of the right side: 1.813835715

Break this problem into two subproblems by setting 
(x + 2.3) equal to 1.813835715 and -1.813835715.

Subproblem 1

x + 2.3 = 1.813835715 Simplifying x + 2.3 = 1.813835715 Reorder the terms: 2.3 + x = 1.813835715 Solving 2.3 + x = 1.813835715 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 = 1.813835715 + -2.3 Combine like terms: 2.3 + -2.3 = 0.0 0.0 + x = 1.813835715 + -2.3 x = 1.813835715 + -2.3 Combine like terms: 1.813835715 + -2.3 = -0.486164285 x = -0.486164285 Simplifying x = -0.486164285

Subproblem 2

x + 2.3 = -1.813835715 Simplifying x + 2.3 = -1.813835715 Reorder the terms: 2.3 + x = -1.813835715 Solving 2.3 + x = -1.813835715 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 = -1.813835715 + -2.3 Combine like terms: 2.3 + -2.3 = 0.0 0.0 + x = -1.813835715 + -2.3 x = -1.813835715 + -2.3 Combine like terms: -1.813835715 + -2.3 = -4.113835715 x = -4.113835715 Simplifying x = -4.113835715

Solution

The solution to the problem is based on the solutions from the subproblems. x = {-0.486164285, -4.113835715}

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