12x^2-19x=22

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Solution for 12x^2-19x=22 equation:


Simplifying
12x2 + -19x = 22

Reorder the terms:
-19x + 12x2 = 22

Solving
-19x + 12x2 = 22

Solving for variable 'x'.

Reorder the terms:
-22 + -19x + 12x2 = 22 + -22

Combine like terms: 22 + -22 = 0
-22 + -19x + 12x2 = 0

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

Divide each side by '12'.
-1.833333333 + -1.583333333x + x2 = 0

Move the constant term to the right:

Add '1.833333333' to each side of the equation.
-1.833333333 + -1.583333333x + 1.833333333 + x2 = 0 + 1.833333333

Reorder the terms:
-1.833333333 + 1.833333333 + -1.583333333x + x2 = 0 + 1.833333333

Combine like terms: -1.833333333 + 1.833333333 = 0.000000000
0.000000000 + -1.583333333x + x2 = 0 + 1.833333333
-1.583333333x + x2 = 0 + 1.833333333

Combine like terms: 0 + 1.833333333 = 1.833333333
-1.583333333x + x2 = 1.833333333

The x term is -1.583333333x.  Take half its coefficient (-0.7916666665).
Square it (0.6267361108) and add it to both sides.

Add '0.6267361108' to each side of the equation.
-1.583333333x + 0.6267361108 + x2 = 1.833333333 + 0.6267361108

Reorder the terms:
0.6267361108 + -1.583333333x + x2 = 1.833333333 + 0.6267361108

Combine like terms: 1.833333333 + 0.6267361108 = 2.4600694438
0.6267361108 + -1.583333333x + x2 = 2.4600694438

Factor a perfect square on the left side:
(x + -0.7916666665)(x + -0.7916666665) = 2.4600694438

Calculate the square root of the right side: 1.568460852

Break this problem into two subproblems by setting 
(x + -0.7916666665) equal to 1.568460852 and -1.568460852.

Subproblem 1

x + -0.7916666665 = 1.568460852 Simplifying x + -0.7916666665 = 1.568460852 Reorder the terms: -0.7916666665 + x = 1.568460852 Solving -0.7916666665 + x = 1.568460852 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '0.7916666665' to each side of the equation. -0.7916666665 + 0.7916666665 + x = 1.568460852 + 0.7916666665 Combine like terms: -0.7916666665 + 0.7916666665 = 0.0000000000 0.0000000000 + x = 1.568460852 + 0.7916666665 x = 1.568460852 + 0.7916666665 Combine like terms: 1.568460852 + 0.7916666665 = 2.3601275185 x = 2.3601275185 Simplifying x = 2.3601275185

Subproblem 2

x + -0.7916666665 = -1.568460852 Simplifying x + -0.7916666665 = -1.568460852 Reorder the terms: -0.7916666665 + x = -1.568460852 Solving -0.7916666665 + x = -1.568460852 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '0.7916666665' to each side of the equation. -0.7916666665 + 0.7916666665 + x = -1.568460852 + 0.7916666665 Combine like terms: -0.7916666665 + 0.7916666665 = 0.0000000000 0.0000000000 + x = -1.568460852 + 0.7916666665 x = -1.568460852 + 0.7916666665 Combine like terms: -1.568460852 + 0.7916666665 = -0.7767941855 x = -0.7767941855 Simplifying x = -0.7767941855

Solution

The solution to the problem is based on the solutions from the subproblems. x = {2.3601275185, -0.7767941855}

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