6x*6x+11x-72=0

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Solution for 6x*6x+11x-72=0 equation:


Simplifying
6x * 6x + 11x + -72 = 0

Reorder the terms for easier multiplication:
6 * 6x * x + 11x + -72 = 0

Multiply 6 * 6
36x * x + 11x + -72 = 0

Multiply x * x
36x2 + 11x + -72 = 0

Reorder the terms:
-72 + 11x + 36x2 = 0

Solving
-72 + 11x + 36x2 = 0

Solving for variable 'x'.

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

Divide each side by '36'.
-2 + 0.3055555556x + x2 = 0

Move the constant term to the right:

Add '2' to each side of the equation.
-2 + 0.3055555556x + 2 + x2 = 0 + 2

Reorder the terms:
-2 + 2 + 0.3055555556x + x2 = 0 + 2

Combine like terms: -2 + 2 = 0
0 + 0.3055555556x + x2 = 0 + 2
0.3055555556x + x2 = 0 + 2

Combine like terms: 0 + 2 = 2
0.3055555556x + x2 = 2

The x term is 0.3055555556x.  Take half its coefficient (0.1527777778).
Square it (0.02334104939) and add it to both sides.

Add '0.02334104939' to each side of the equation.
0.3055555556x + 0.02334104939 + x2 = 2 + 0.02334104939

Reorder the terms:
0.02334104939 + 0.3055555556x + x2 = 2 + 0.02334104939

Combine like terms: 2 + 0.02334104939 = 2.02334104939
0.02334104939 + 0.3055555556x + x2 = 2.02334104939

Factor a perfect square on the left side:
(x + 0.1527777778)(x + 0.1527777778) = 2.02334104939

Calculate the square root of the right side: 1.422441932

Break this problem into two subproblems by setting 
(x + 0.1527777778) equal to 1.422441932 and -1.422441932.

Subproblem 1

x + 0.1527777778 = 1.422441932 Simplifying x + 0.1527777778 = 1.422441932 Reorder the terms: 0.1527777778 + x = 1.422441932 Solving 0.1527777778 + x = 1.422441932 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-0.1527777778' to each side of the equation. 0.1527777778 + -0.1527777778 + x = 1.422441932 + -0.1527777778 Combine like terms: 0.1527777778 + -0.1527777778 = 0.0000000000 0.0000000000 + x = 1.422441932 + -0.1527777778 x = 1.422441932 + -0.1527777778 Combine like terms: 1.422441932 + -0.1527777778 = 1.2696641542 x = 1.2696641542 Simplifying x = 1.2696641542

Subproblem 2

x + 0.1527777778 = -1.422441932 Simplifying x + 0.1527777778 = -1.422441932 Reorder the terms: 0.1527777778 + x = -1.422441932 Solving 0.1527777778 + x = -1.422441932 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-0.1527777778' to each side of the equation. 0.1527777778 + -0.1527777778 + x = -1.422441932 + -0.1527777778 Combine like terms: 0.1527777778 + -0.1527777778 = 0.0000000000 0.0000000000 + x = -1.422441932 + -0.1527777778 x = -1.422441932 + -0.1527777778 Combine like terms: -1.422441932 + -0.1527777778 = -1.5752197098 x = -1.5752197098 Simplifying x = -1.5752197098

Solution

The solution to the problem is based on the solutions from the subproblems. x = {1.2696641542, -1.5752197098}

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