12x^2-33x+7=0

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Solution for 12x^2-33x+7=0 equation:


Simplifying
12x2 + -33x + 7 = 0

Reorder the terms:
7 + -33x + 12x2 = 0

Solving
7 + -33x + 12x2 = 0

Solving for variable 'x'.

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

Divide each side by '12'.
0.5833333333 + -2.75x + x2 = 0

Move the constant term to the right:

Add '-0.5833333333' to each side of the equation.
0.5833333333 + -2.75x + -0.5833333333 + x2 = 0 + -0.5833333333

Reorder the terms:
0.5833333333 + -0.5833333333 + -2.75x + x2 = 0 + -0.5833333333

Combine like terms: 0.5833333333 + -0.5833333333 = 0.0000000000
0.0000000000 + -2.75x + x2 = 0 + -0.5833333333
-2.75x + x2 = 0 + -0.5833333333

Combine like terms: 0 + -0.5833333333 = -0.5833333333
-2.75x + x2 = -0.5833333333

The x term is -2.75x.  Take half its coefficient (-1.375).
Square it (1.890625) and add it to both sides.

Add '1.890625' to each side of the equation.
-2.75x + 1.890625 + x2 = -0.5833333333 + 1.890625

Reorder the terms:
1.890625 + -2.75x + x2 = -0.5833333333 + 1.890625

Combine like terms: -0.5833333333 + 1.890625 = 1.3072916667
1.890625 + -2.75x + x2 = 1.3072916667

Factor a perfect square on the left side:
(x + -1.375)(x + -1.375) = 1.3072916667

Calculate the square root of the right side: 1.143368561

Break this problem into two subproblems by setting 
(x + -1.375) equal to 1.143368561 and -1.143368561.

Subproblem 1

x + -1.375 = 1.143368561 Simplifying x + -1.375 = 1.143368561 Reorder the terms: -1.375 + x = 1.143368561 Solving -1.375 + x = 1.143368561 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '1.375' to each side of the equation. -1.375 + 1.375 + x = 1.143368561 + 1.375 Combine like terms: -1.375 + 1.375 = 0.000 0.000 + x = 1.143368561 + 1.375 x = 1.143368561 + 1.375 Combine like terms: 1.143368561 + 1.375 = 2.518368561 x = 2.518368561 Simplifying x = 2.518368561

Subproblem 2

x + -1.375 = -1.143368561 Simplifying x + -1.375 = -1.143368561 Reorder the terms: -1.375 + x = -1.143368561 Solving -1.375 + x = -1.143368561 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '1.375' to each side of the equation. -1.375 + 1.375 + x = -1.143368561 + 1.375 Combine like terms: -1.375 + 1.375 = 0.000 0.000 + x = -1.143368561 + 1.375 x = -1.143368561 + 1.375 Combine like terms: -1.143368561 + 1.375 = 0.231631439 x = 0.231631439 Simplifying x = 0.231631439

Solution

The solution to the problem is based on the solutions from the subproblems. x = {2.518368561, 0.231631439}

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