1.18x^2-11.136x+8=0

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Solution for 1.18x^2-11.136x+8=0 equation:


Simplifying
1.18x2 + -11.136x + 8 = 0

Reorder the terms:
8 + -11.136x + 1.18x2 = 0

Solving
8 + -11.136x + 1.18x2 = 0

Solving for variable 'x'.

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

Divide each side by '1.18'.
6.779661017 + -9.437288136x + x2 = 0

Move the constant term to the right:

Add '-6.779661017' to each side of the equation.
6.779661017 + -9.437288136x + -6.779661017 + x2 = 0 + -6.779661017

Reorder the terms:
6.779661017 + -6.779661017 + -9.437288136x + x2 = 0 + -6.779661017

Combine like terms: 6.779661017 + -6.779661017 = 0.000000000
0.000000000 + -9.437288136x + x2 = 0 + -6.779661017
-9.437288136x + x2 = 0 + -6.779661017

Combine like terms: 0 + -6.779661017 = -6.779661017
-9.437288136x + x2 = -6.779661017

The x term is -9.437288136x.  Take half its coefficient (-4.718644068).
Square it (22.26560184) and add it to both sides.

Add '22.26560184' to each side of the equation.
-9.437288136x + 22.26560184 + x2 = -6.779661017 + 22.26560184

Reorder the terms:
22.26560184 + -9.437288136x + x2 = -6.779661017 + 22.26560184

Combine like terms: -6.779661017 + 22.26560184 = 15.485940823
22.26560184 + -9.437288136x + x2 = 15.485940823

Factor a perfect square on the left side:
(x + -4.718644068)(x + -4.718644068) = 15.485940823

Calculate the square root of the right side: 3.935218015

Break this problem into two subproblems by setting 
(x + -4.718644068) equal to 3.935218015 and -3.935218015.

Subproblem 1

x + -4.718644068 = 3.935218015 Simplifying x + -4.718644068 = 3.935218015 Reorder the terms: -4.718644068 + x = 3.935218015 Solving -4.718644068 + x = 3.935218015 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '4.718644068' to each side of the equation. -4.718644068 + 4.718644068 + x = 3.935218015 + 4.718644068 Combine like terms: -4.718644068 + 4.718644068 = 0.000000000 0.000000000 + x = 3.935218015 + 4.718644068 x = 3.935218015 + 4.718644068 Combine like terms: 3.935218015 + 4.718644068 = 8.653862083 x = 8.653862083 Simplifying x = 8.653862083

Subproblem 2

x + -4.718644068 = -3.935218015 Simplifying x + -4.718644068 = -3.935218015 Reorder the terms: -4.718644068 + x = -3.935218015 Solving -4.718644068 + x = -3.935218015 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '4.718644068' to each side of the equation. -4.718644068 + 4.718644068 + x = -3.935218015 + 4.718644068 Combine like terms: -4.718644068 + 4.718644068 = 0.000000000 0.000000000 + x = -3.935218015 + 4.718644068 x = -3.935218015 + 4.718644068 Combine like terms: -3.935218015 + 4.718644068 = 0.783426053 x = 0.783426053 Simplifying x = 0.783426053

Solution

The solution to the problem is based on the solutions from the subproblems. x = {8.653862083, 0.783426053}

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