55x^2+10x-6=0

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Solution for 55x^2+10x-6=0 equation:


Simplifying
55x2 + 10x + -6 = 0

Reorder the terms:
-6 + 10x + 55x2 = 0

Solving
-6 + 10x + 55x2 = 0

Solving for variable 'x'.

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

Divide each side by '55'.
-0.1090909091 + 0.1818181818x + x2 = 0

Move the constant term to the right:

Add '0.1090909091' to each side of the equation.
-0.1090909091 + 0.1818181818x + 0.1090909091 + x2 = 0 + 0.1090909091

Reorder the terms:
-0.1090909091 + 0.1090909091 + 0.1818181818x + x2 = 0 + 0.1090909091

Combine like terms: -0.1090909091 + 0.1090909091 = 0.0000000000
0.0000000000 + 0.1818181818x + x2 = 0 + 0.1090909091
0.1818181818x + x2 = 0 + 0.1090909091

Combine like terms: 0 + 0.1090909091 = 0.1090909091
0.1818181818x + x2 = 0.1090909091

The x term is 0.1818181818x.  Take half its coefficient (0.0909090909).
Square it (0.008264462808) and add it to both sides.

Add '0.008264462808' to each side of the equation.
0.1818181818x + 0.008264462808 + x2 = 0.1090909091 + 0.008264462808

Reorder the terms:
0.008264462808 + 0.1818181818x + x2 = 0.1090909091 + 0.008264462808

Combine like terms: 0.1090909091 + 0.008264462808 = 0.117355371908
0.008264462808 + 0.1818181818x + x2 = 0.117355371908

Factor a perfect square on the left side:
(x + 0.0909090909)(x + 0.0909090909) = 0.117355371908

Calculate the square root of the right side: 0.342571703

Break this problem into two subproblems by setting 
(x + 0.0909090909) equal to 0.342571703 and -0.342571703.

Subproblem 1

x + 0.0909090909 = 0.342571703 Simplifying x + 0.0909090909 = 0.342571703 Reorder the terms: 0.0909090909 + x = 0.342571703 Solving 0.0909090909 + x = 0.342571703 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-0.0909090909' to each side of the equation. 0.0909090909 + -0.0909090909 + x = 0.342571703 + -0.0909090909 Combine like terms: 0.0909090909 + -0.0909090909 = 0.0000000000 0.0000000000 + x = 0.342571703 + -0.0909090909 x = 0.342571703 + -0.0909090909 Combine like terms: 0.342571703 + -0.0909090909 = 0.2516626121 x = 0.2516626121 Simplifying x = 0.2516626121

Subproblem 2

x + 0.0909090909 = -0.342571703 Simplifying x + 0.0909090909 = -0.342571703 Reorder the terms: 0.0909090909 + x = -0.342571703 Solving 0.0909090909 + x = -0.342571703 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-0.0909090909' to each side of the equation. 0.0909090909 + -0.0909090909 + x = -0.342571703 + -0.0909090909 Combine like terms: 0.0909090909 + -0.0909090909 = 0.0000000000 0.0000000000 + x = -0.342571703 + -0.0909090909 x = -0.342571703 + -0.0909090909 Combine like terms: -0.342571703 + -0.0909090909 = -0.4334807939 x = -0.4334807939 Simplifying x = -0.4334807939

Solution

The solution to the problem is based on the solutions from the subproblems. x = {0.2516626121, -0.4334807939}

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