x^2-12.3*x-32=0

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Solution for x^2-12.3*x-32=0 equation:


Simplifying
x2 + -12.3x + -32 = 0

Reorder the terms:
-32 + -12.3x + x2 = 0

Solving
-32 + -12.3x + x2 = 0

Solving for variable 'x'.

Begin completing the square.

Move the constant term to the right:

Add '32' to each side of the equation.
-32 + -12.3x + 32 + x2 = 0 + 32

Reorder the terms:
-32 + 32 + -12.3x + x2 = 0 + 32

Combine like terms: -32 + 32 = 0
0 + -12.3x + x2 = 0 + 32
-12.3x + x2 = 0 + 32

Combine like terms: 0 + 32 = 32
-12.3x + x2 = 32

The x term is -12.3x.  Take half its coefficient (-6.15).
Square it (37.8225) and add it to both sides.

Add '37.8225' to each side of the equation.
-12.3x + 37.8225 + x2 = 32 + 37.8225

Reorder the terms:
37.8225 + -12.3x + x2 = 32 + 37.8225

Combine like terms: 32 + 37.8225 = 69.8225
37.8225 + -12.3x + x2 = 69.8225

Factor a perfect square on the left side:
(x + -6.15)(x + -6.15) = 69.8225

Calculate the square root of the right side: 8.355985878

Break this problem into two subproblems by setting 
(x + -6.15) equal to 8.355985878 and -8.355985878.

Subproblem 1

x + -6.15 = 8.355985878 Simplifying x + -6.15 = 8.355985878 Reorder the terms: -6.15 + x = 8.355985878 Solving -6.15 + x = 8.355985878 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '6.15' to each side of the equation. -6.15 + 6.15 + x = 8.355985878 + 6.15 Combine like terms: -6.15 + 6.15 = 0.00 0.00 + x = 8.355985878 + 6.15 x = 8.355985878 + 6.15 Combine like terms: 8.355985878 + 6.15 = 14.505985878 x = 14.505985878 Simplifying x = 14.505985878

Subproblem 2

x + -6.15 = -8.355985878 Simplifying x + -6.15 = -8.355985878 Reorder the terms: -6.15 + x = -8.355985878 Solving -6.15 + x = -8.355985878 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '6.15' to each side of the equation. -6.15 + 6.15 + x = -8.355985878 + 6.15 Combine like terms: -6.15 + 6.15 = 0.00 0.00 + x = -8.355985878 + 6.15 x = -8.355985878 + 6.15 Combine like terms: -8.355985878 + 6.15 = -2.205985878 x = -2.205985878 Simplifying x = -2.205985878

Solution

The solution to the problem is based on the solutions from the subproblems. x = {14.505985878, -2.205985878}

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