(3x-11)(3x-11)=5

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Solution for (3x-11)(3x-11)=5 equation:


Simplifying
(3x + -11)(3x + -11) = 5

Reorder the terms:
(-11 + 3x)(3x + -11) = 5

Reorder the terms:
(-11 + 3x)(-11 + 3x) = 5

Multiply (-11 + 3x) * (-11 + 3x)
(-11(-11 + 3x) + 3x * (-11 + 3x)) = 5
((-11 * -11 + 3x * -11) + 3x * (-11 + 3x)) = 5
((121 + -33x) + 3x * (-11 + 3x)) = 5
(121 + -33x + (-11 * 3x + 3x * 3x)) = 5
(121 + -33x + (-33x + 9x2)) = 5

Combine like terms: -33x + -33x = -66x
(121 + -66x + 9x2) = 5

Solving
121 + -66x + 9x2 = 5

Solving for variable 'x'.

Reorder the terms:
121 + -5 + -66x + 9x2 = 5 + -5

Combine like terms: 121 + -5 = 116
116 + -66x + 9x2 = 5 + -5

Combine like terms: 5 + -5 = 0
116 + -66x + 9x2 = 0

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

Divide each side by '9'.
12.88888889 + -7.333333333x + x2 = 0

Move the constant term to the right:

Add '-12.88888889' to each side of the equation.
12.88888889 + -7.333333333x + -12.88888889 + x2 = 0 + -12.88888889

Reorder the terms:
12.88888889 + -12.88888889 + -7.333333333x + x2 = 0 + -12.88888889

Combine like terms: 12.88888889 + -12.88888889 = 0.00000000
0.00000000 + -7.333333333x + x2 = 0 + -12.88888889
-7.333333333x + x2 = 0 + -12.88888889

Combine like terms: 0 + -12.88888889 = -12.88888889
-7.333333333x + x2 = -12.88888889

The x term is -7.333333333x.  Take half its coefficient (-3.666666667).
Square it (13.44444445) and add it to both sides.

Add '13.44444445' to each side of the equation.
-7.333333333x + 13.44444445 + x2 = -12.88888889 + 13.44444445

Reorder the terms:
13.44444445 + -7.333333333x + x2 = -12.88888889 + 13.44444445

Combine like terms: -12.88888889 + 13.44444445 = 0.55555556
13.44444445 + -7.333333333x + x2 = 0.55555556

Factor a perfect square on the left side:
(x + -3.666666667)(x + -3.666666667) = 0.55555556

Calculate the square root of the right side: 0.745355995

Break this problem into two subproblems by setting 
(x + -3.666666667) equal to 0.745355995 and -0.745355995.

Subproblem 1

x + -3.666666667 = 0.745355995 Simplifying x + -3.666666667 = 0.745355995 Reorder the terms: -3.666666667 + x = 0.745355995 Solving -3.666666667 + x = 0.745355995 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '3.666666667' to each side of the equation. -3.666666667 + 3.666666667 + x = 0.745355995 + 3.666666667 Combine like terms: -3.666666667 + 3.666666667 = 0.000000000 0.000000000 + x = 0.745355995 + 3.666666667 x = 0.745355995 + 3.666666667 Combine like terms: 0.745355995 + 3.666666667 = 4.412022662 x = 4.412022662 Simplifying x = 4.412022662

Subproblem 2

x + -3.666666667 = -0.745355995 Simplifying x + -3.666666667 = -0.745355995 Reorder the terms: -3.666666667 + x = -0.745355995 Solving -3.666666667 + x = -0.745355995 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '3.666666667' to each side of the equation. -3.666666667 + 3.666666667 + x = -0.745355995 + 3.666666667 Combine like terms: -3.666666667 + 3.666666667 = 0.000000000 0.000000000 + x = -0.745355995 + 3.666666667 x = -0.745355995 + 3.666666667 Combine like terms: -0.745355995 + 3.666666667 = 2.921310672 x = 2.921310672 Simplifying x = 2.921310672

Solution

The solution to the problem is based on the solutions from the subproblems. x = {4.412022662, 2.921310672}

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