2x^2+33x-6.3=0

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Solution for 2x^2+33x-6.3=0 equation:


Simplifying
2x2 + 33x + -6.3 = 0

Reorder the terms:
-6.3 + 33x + 2x2 = 0

Solving
-6.3 + 33x + 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'.
-3.15 + 16.5x + x2 = 0

Move the constant term to the right:

Add '3.15' to each side of the equation.
-3.15 + 16.5x + 3.15 + x2 = 0 + 3.15

Reorder the terms:
-3.15 + 3.15 + 16.5x + x2 = 0 + 3.15

Combine like terms: -3.15 + 3.15 = 0.00
0.00 + 16.5x + x2 = 0 + 3.15
16.5x + x2 = 0 + 3.15

Combine like terms: 0 + 3.15 = 3.15
16.5x + x2 = 3.15

The x term is 16.5x.  Take half its coefficient (8.25).
Square it (68.0625) and add it to both sides.

Add '68.0625' to each side of the equation.
16.5x + 68.0625 + x2 = 3.15 + 68.0625

Reorder the terms:
68.0625 + 16.5x + x2 = 3.15 + 68.0625

Combine like terms: 3.15 + 68.0625 = 71.2125
68.0625 + 16.5x + x2 = 71.2125

Factor a perfect square on the left side:
(x + 8.25)(x + 8.25) = 71.2125

Calculate the square root of the right side: 8.438749907

Break this problem into two subproblems by setting 
(x + 8.25) equal to 8.438749907 and -8.438749907.

Subproblem 1

x + 8.25 = 8.438749907 Simplifying x + 8.25 = 8.438749907 Reorder the terms: 8.25 + x = 8.438749907 Solving 8.25 + x = 8.438749907 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-8.25' to each side of the equation. 8.25 + -8.25 + x = 8.438749907 + -8.25 Combine like terms: 8.25 + -8.25 = 0.00 0.00 + x = 8.438749907 + -8.25 x = 8.438749907 + -8.25 Combine like terms: 8.438749907 + -8.25 = 0.188749907 x = 0.188749907 Simplifying x = 0.188749907

Subproblem 2

x + 8.25 = -8.438749907 Simplifying x + 8.25 = -8.438749907 Reorder the terms: 8.25 + x = -8.438749907 Solving 8.25 + x = -8.438749907 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-8.25' to each side of the equation. 8.25 + -8.25 + x = -8.438749907 + -8.25 Combine like terms: 8.25 + -8.25 = 0.00 0.00 + x = -8.438749907 + -8.25 x = -8.438749907 + -8.25 Combine like terms: -8.438749907 + -8.25 = -16.688749907 x = -16.688749907 Simplifying x = -16.688749907

Solution

The solution to the problem is based on the solutions from the subproblems. x = {0.188749907, -16.688749907}

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