(11x+9)*(11x+9)=110

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Solution for (11x+9)*(11x+9)=110 equation:


Simplifying
(11x + 9)(11x + 9) = 110

Reorder the terms:
(9 + 11x)(11x + 9) = 110

Reorder the terms:
(9 + 11x)(9 + 11x) = 110

Multiply (9 + 11x) * (9 + 11x)
(9(9 + 11x) + 11x * (9 + 11x)) = 110
((9 * 9 + 11x * 9) + 11x * (9 + 11x)) = 110
((81 + 99x) + 11x * (9 + 11x)) = 110
(81 + 99x + (9 * 11x + 11x * 11x)) = 110
(81 + 99x + (99x + 121x2)) = 110

Combine like terms: 99x + 99x = 198x
(81 + 198x + 121x2) = 110

Solving
81 + 198x + 121x2 = 110

Solving for variable 'x'.

Reorder the terms:
81 + -110 + 198x + 121x2 = 110 + -110

Combine like terms: 81 + -110 = -29
-29 + 198x + 121x2 = 110 + -110

Combine like terms: 110 + -110 = 0
-29 + 198x + 121x2 = 0

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

Divide each side by '121'.
-0.2396694215 + 1.636363636x + x2 = 0

Move the constant term to the right:

Add '0.2396694215' to each side of the equation.
-0.2396694215 + 1.636363636x + 0.2396694215 + x2 = 0 + 0.2396694215

Reorder the terms:
-0.2396694215 + 0.2396694215 + 1.636363636x + x2 = 0 + 0.2396694215

Combine like terms: -0.2396694215 + 0.2396694215 = 0.0000000000
0.0000000000 + 1.636363636x + x2 = 0 + 0.2396694215
1.636363636x + x2 = 0 + 0.2396694215

Combine like terms: 0 + 0.2396694215 = 0.2396694215
1.636363636x + x2 = 0.2396694215

The x term is 1.636363636x.  Take half its coefficient (0.818181818).
Square it (0.6694214873) and add it to both sides.

Add '0.6694214873' to each side of the equation.
1.636363636x + 0.6694214873 + x2 = 0.2396694215 + 0.6694214873

Reorder the terms:
0.6694214873 + 1.636363636x + x2 = 0.2396694215 + 0.6694214873

Combine like terms: 0.2396694215 + 0.6694214873 = 0.9090909088
0.6694214873 + 1.636363636x + x2 = 0.9090909088

Factor a perfect square on the left side:
(x + 0.818181818)(x + 0.818181818) = 0.9090909088

Calculate the square root of the right side: 0.953462589

Break this problem into two subproblems by setting 
(x + 0.818181818) equal to 0.953462589 and -0.953462589.

Subproblem 1

x + 0.818181818 = 0.953462589 Simplifying x + 0.818181818 = 0.953462589 Reorder the terms: 0.818181818 + x = 0.953462589 Solving 0.818181818 + x = 0.953462589 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-0.818181818' to each side of the equation. 0.818181818 + -0.818181818 + x = 0.953462589 + -0.818181818 Combine like terms: 0.818181818 + -0.818181818 = 0.000000000 0.000000000 + x = 0.953462589 + -0.818181818 x = 0.953462589 + -0.818181818 Combine like terms: 0.953462589 + -0.818181818 = 0.135280771 x = 0.135280771 Simplifying x = 0.135280771

Subproblem 2

x + 0.818181818 = -0.953462589 Simplifying x + 0.818181818 = -0.953462589 Reorder the terms: 0.818181818 + x = -0.953462589 Solving 0.818181818 + x = -0.953462589 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-0.818181818' to each side of the equation. 0.818181818 + -0.818181818 + x = -0.953462589 + -0.818181818 Combine like terms: 0.818181818 + -0.818181818 = 0.000000000 0.000000000 + x = -0.953462589 + -0.818181818 x = -0.953462589 + -0.818181818 Combine like terms: -0.953462589 + -0.818181818 = -1.771644407 x = -1.771644407 Simplifying x = -1.771644407

Solution

The solution to the problem is based on the solutions from the subproblems. x = {0.135280771, -1.771644407}

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