10x^2-69x+118=0

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Solution for 10x^2-69x+118=0 equation:


Simplifying
10x2 + -69x + 118 = 0

Reorder the terms:
118 + -69x + 10x2 = 0

Solving
118 + -69x + 10x2 = 0

Solving for variable 'x'.

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

Divide each side by '10'.
11.8 + -6.9x + x2 = 0

Move the constant term to the right:

Add '-11.8' to each side of the equation.
11.8 + -6.9x + -11.8 + x2 = 0 + -11.8

Reorder the terms:
11.8 + -11.8 + -6.9x + x2 = 0 + -11.8

Combine like terms: 11.8 + -11.8 = 0.0
0.0 + -6.9x + x2 = 0 + -11.8
-6.9x + x2 = 0 + -11.8

Combine like terms: 0 + -11.8 = -11.8
-6.9x + x2 = -11.8

The x term is -6.9x.  Take half its coefficient (-3.45).
Square it (11.9025) and add it to both sides.

Add '11.9025' to each side of the equation.
-6.9x + 11.9025 + x2 = -11.8 + 11.9025

Reorder the terms:
11.9025 + -6.9x + x2 = -11.8 + 11.9025

Combine like terms: -11.8 + 11.9025 = 0.1025
11.9025 + -6.9x + x2 = 0.1025

Factor a perfect square on the left side:
(x + -3.45)(x + -3.45) = 0.1025

Calculate the square root of the right side: 0.320156212

Break this problem into two subproblems by setting 
(x + -3.45) equal to 0.320156212 and -0.320156212.

Subproblem 1

x + -3.45 = 0.320156212 Simplifying x + -3.45 = 0.320156212 Reorder the terms: -3.45 + x = 0.320156212 Solving -3.45 + x = 0.320156212 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '3.45' to each side of the equation. -3.45 + 3.45 + x = 0.320156212 + 3.45 Combine like terms: -3.45 + 3.45 = 0.00 0.00 + x = 0.320156212 + 3.45 x = 0.320156212 + 3.45 Combine like terms: 0.320156212 + 3.45 = 3.770156212 x = 3.770156212 Simplifying x = 3.770156212

Subproblem 2

x + -3.45 = -0.320156212 Simplifying x + -3.45 = -0.320156212 Reorder the terms: -3.45 + x = -0.320156212 Solving -3.45 + x = -0.320156212 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '3.45' to each side of the equation. -3.45 + 3.45 + x = -0.320156212 + 3.45 Combine like terms: -3.45 + 3.45 = 0.00 0.00 + x = -0.320156212 + 3.45 x = -0.320156212 + 3.45 Combine like terms: -0.320156212 + 3.45 = 3.129843788 x = 3.129843788 Simplifying x = 3.129843788

Solution

The solution to the problem is based on the solutions from the subproblems. x = {3.770156212, 3.129843788}

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