2x^2+(6x)-183=0

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Solution for 2x^2+(6x)-183=0 equation:


Simplifying
2x2 + (6x) + -183 = 0

Reorder the terms:
-183 + (6x) + 2x2 = 0

Solving
-183 + (6x) + 2x2 = 0

Solving for variable 'x'.

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

Divide each side by '2'.
-91.5 + (3x) + x2 = 0

Move the constant term to the right:

Add '91.5' to each side of the equation.
-91.5 + (3x) + 91.5 + x2 = 0 + 91.5

Reorder the terms:
-91.5 + 91.5 + (3x) + x2 = 0 + 91.5

Combine like terms: -91.5 + 91.5 = 0.0
0.0 + (3x) + x2 = 0 + 91.5
(3x) + x2 = 0 + 91.5

Combine like terms: 0 + 91.5 = 91.5
(3x) + x2 = 91.5

The x term is (3x).  Take half its coefficient (1.5).
Square it (2.25) and add it to both sides.

Add '2.25' to each side of the equation.
(3x) + 2.25 + x2 = 91.5 + 2.25

Reorder the terms:
2.25 + (3x) + x2 = 91.5 + 2.25

Combine like terms: 91.5 + 2.25 = 93.75
2.25 + (3x) + x2 = 93.75

Factor a perfect square on the left side:
(x + 1.5)(x + 1.5) = 93.75

Calculate the square root of the right side: 9.682458366

Break this problem into two subproblems by setting 
(x + 1.5) equal to 9.682458366 and -9.682458366.

Subproblem 1

x + 1.5 = 9.682458366 Simplifying x + 1.5 = 9.682458366 Reorder the terms: 1.5 + x = 9.682458366 Solving 1.5 + x = 9.682458366 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-1.5' to each side of the equation. 1.5 + -1.5 + x = 9.682458366 + -1.5 Combine like terms: 1.5 + -1.5 = 0.0 0.0 + x = 9.682458366 + -1.5 x = 9.682458366 + -1.5 Combine like terms: 9.682458366 + -1.5 = 8.182458366 x = 8.182458366 Simplifying x = 8.182458366

Subproblem 2

x + 1.5 = -9.682458366 Simplifying x + 1.5 = -9.682458366 Reorder the terms: 1.5 + x = -9.682458366 Solving 1.5 + x = -9.682458366 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-1.5' to each side of the equation. 1.5 + -1.5 + x = -9.682458366 + -1.5 Combine like terms: 1.5 + -1.5 = 0.0 0.0 + x = -9.682458366 + -1.5 x = -9.682458366 + -1.5 Combine like terms: -9.682458366 + -1.5 = -11.182458366 x = -11.182458366 Simplifying x = -11.182458366

Solution

The solution to the problem is based on the solutions from the subproblems. x = {8.182458366, -11.182458366}

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