6x^2+11x-22=0

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Solution for 6x^2+11x-22=0 equation:


Simplifying
6x2 + 11x + -22 = 0

Reorder the terms:
-22 + 11x + 6x2 = 0

Solving
-22 + 11x + 6x2 = 0

Solving for variable 'x'.

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

Divide each side by '6'.
-3.666666667 + 1.833333333x + x2 = 0

Move the constant term to the right:

Add '3.666666667' to each side of the equation.
-3.666666667 + 1.833333333x + 3.666666667 + x2 = 0 + 3.666666667

Reorder the terms:
-3.666666667 + 3.666666667 + 1.833333333x + x2 = 0 + 3.666666667

Combine like terms: -3.666666667 + 3.666666667 = 0.000000000
0.000000000 + 1.833333333x + x2 = 0 + 3.666666667
1.833333333x + x2 = 0 + 3.666666667

Combine like terms: 0 + 3.666666667 = 3.666666667
1.833333333x + x2 = 3.666666667

The x term is 1.833333333x.  Take half its coefficient (0.9166666665).
Square it (0.8402777775) and add it to both sides.

Add '0.8402777775' to each side of the equation.
1.833333333x + 0.8402777775 + x2 = 3.666666667 + 0.8402777775

Reorder the terms:
0.8402777775 + 1.833333333x + x2 = 3.666666667 + 0.8402777775

Combine like terms: 3.666666667 + 0.8402777775 = 4.5069444445
0.8402777775 + 1.833333333x + x2 = 4.5069444445

Factor a perfect square on the left side:
(x + 0.9166666665)(x + 0.9166666665) = 4.5069444445

Calculate the square root of the right side: 2.122956534

Break this problem into two subproblems by setting 
(x + 0.9166666665) equal to 2.122956534 and -2.122956534.

Subproblem 1

x + 0.9166666665 = 2.122956534 Simplifying x + 0.9166666665 = 2.122956534 Reorder the terms: 0.9166666665 + x = 2.122956534 Solving 0.9166666665 + x = 2.122956534 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-0.9166666665' to each side of the equation. 0.9166666665 + -0.9166666665 + x = 2.122956534 + -0.9166666665 Combine like terms: 0.9166666665 + -0.9166666665 = 0.0000000000 0.0000000000 + x = 2.122956534 + -0.9166666665 x = 2.122956534 + -0.9166666665 Combine like terms: 2.122956534 + -0.9166666665 = 1.2062898675 x = 1.2062898675 Simplifying x = 1.2062898675

Subproblem 2

x + 0.9166666665 = -2.122956534 Simplifying x + 0.9166666665 = -2.122956534 Reorder the terms: 0.9166666665 + x = -2.122956534 Solving 0.9166666665 + x = -2.122956534 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-0.9166666665' to each side of the equation. 0.9166666665 + -0.9166666665 + x = -2.122956534 + -0.9166666665 Combine like terms: 0.9166666665 + -0.9166666665 = 0.0000000000 0.0000000000 + x = -2.122956534 + -0.9166666665 x = -2.122956534 + -0.9166666665 Combine like terms: -2.122956534 + -0.9166666665 = -3.0396232005 x = -3.0396232005 Simplifying x = -3.0396232005

Solution

The solution to the problem is based on the solutions from the subproblems. x = {1.2062898675, -3.0396232005}

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