2x^2-3x=133

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Solution for 2x^2-3x=133 equation:


Simplifying
2x2 + -3x = 133

Reorder the terms:
-3x + 2x2 = 133

Solving
-3x + 2x2 = 133

Solving for variable 'x'.

Reorder the terms:
-133 + -3x + 2x2 = 133 + -133

Combine like terms: 133 + -133 = 0
-133 + -3x + 2x2 = 0

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

Divide each side by '2'.
-66.5 + -1.5x + x2 = 0

Move the constant term to the right:

Add '66.5' to each side of the equation.
-66.5 + -1.5x + 66.5 + x2 = 0 + 66.5

Reorder the terms:
-66.5 + 66.5 + -1.5x + x2 = 0 + 66.5

Combine like terms: -66.5 + 66.5 = 0.0
0.0 + -1.5x + x2 = 0 + 66.5
-1.5x + x2 = 0 + 66.5

Combine like terms: 0 + 66.5 = 66.5
-1.5x + x2 = 66.5

The x term is -1.5x.  Take half its coefficient (-0.75).
Square it (0.5625) and add it to both sides.

Add '0.5625' to each side of the equation.
-1.5x + 0.5625 + x2 = 66.5 + 0.5625

Reorder the terms:
0.5625 + -1.5x + x2 = 66.5 + 0.5625

Combine like terms: 66.5 + 0.5625 = 67.0625
0.5625 + -1.5x + x2 = 67.0625

Factor a perfect square on the left side:
(x + -0.75)(x + -0.75) = 67.0625

Calculate the square root of the right side: 8.189169677

Break this problem into two subproblems by setting 
(x + -0.75) equal to 8.189169677 and -8.189169677.

Subproblem 1

x + -0.75 = 8.189169677 Simplifying x + -0.75 = 8.189169677 Reorder the terms: -0.75 + x = 8.189169677 Solving -0.75 + x = 8.189169677 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '0.75' to each side of the equation. -0.75 + 0.75 + x = 8.189169677 + 0.75 Combine like terms: -0.75 + 0.75 = 0.00 0.00 + x = 8.189169677 + 0.75 x = 8.189169677 + 0.75 Combine like terms: 8.189169677 + 0.75 = 8.939169677 x = 8.939169677 Simplifying x = 8.939169677

Subproblem 2

x + -0.75 = -8.189169677 Simplifying x + -0.75 = -8.189169677 Reorder the terms: -0.75 + x = -8.189169677 Solving -0.75 + x = -8.189169677 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '0.75' to each side of the equation. -0.75 + 0.75 + x = -8.189169677 + 0.75 Combine like terms: -0.75 + 0.75 = 0.00 0.00 + x = -8.189169677 + 0.75 x = -8.189169677 + 0.75 Combine like terms: -8.189169677 + 0.75 = -7.439169677 x = -7.439169677 Simplifying x = -7.439169677

Solution

The solution to the problem is based on the solutions from the subproblems. x = {8.939169677, -7.439169677}

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