96=x^2+12x

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Solution for 96=x^2+12x equation:


Simplifying
96 = x2 + 12x

Reorder the terms:
96 = 12x + x2

Solving
96 = 12x + x2

Solving for variable 'x'.

Reorder the terms:
96 + -12x + -1x2 = 12x + -12x + x2 + -1x2

Combine like terms: 12x + -12x = 0
96 + -12x + -1x2 = 0 + x2 + -1x2
96 + -12x + -1x2 = x2 + -1x2

Combine like terms: x2 + -1x2 = 0
96 + -12x + -1x2 = 0

Begin completing the square.  Divide all terms by
-1 the coefficient of the squared term: 

Divide each side by '-1'.
-96 + 12x + x2 = 0

Move the constant term to the right:

Add '96' to each side of the equation.
-96 + 12x + 96 + x2 = 0 + 96

Reorder the terms:
-96 + 96 + 12x + x2 = 0 + 96

Combine like terms: -96 + 96 = 0
0 + 12x + x2 = 0 + 96
12x + x2 = 0 + 96

Combine like terms: 0 + 96 = 96
12x + x2 = 96

The x term is 12x.  Take half its coefficient (6).
Square it (36) and add it to both sides.

Add '36' to each side of the equation.
12x + 36 + x2 = 96 + 36

Reorder the terms:
36 + 12x + x2 = 96 + 36

Combine like terms: 96 + 36 = 132
36 + 12x + x2 = 132

Factor a perfect square on the left side:
(x + 6)(x + 6) = 132

Calculate the square root of the right side: 11.489125293

Break this problem into two subproblems by setting 
(x + 6) equal to 11.489125293 and -11.489125293.

Subproblem 1

x + 6 = 11.489125293 Simplifying x + 6 = 11.489125293 Reorder the terms: 6 + x = 11.489125293 Solving 6 + x = 11.489125293 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-6' to each side of the equation. 6 + -6 + x = 11.489125293 + -6 Combine like terms: 6 + -6 = 0 0 + x = 11.489125293 + -6 x = 11.489125293 + -6 Combine like terms: 11.489125293 + -6 = 5.489125293 x = 5.489125293 Simplifying x = 5.489125293

Subproblem 2

x + 6 = -11.489125293 Simplifying x + 6 = -11.489125293 Reorder the terms: 6 + x = -11.489125293 Solving 6 + x = -11.489125293 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-6' to each side of the equation. 6 + -6 + x = -11.489125293 + -6 Combine like terms: 6 + -6 = 0 0 + x = -11.489125293 + -6 x = -11.489125293 + -6 Combine like terms: -11.489125293 + -6 = -17.489125293 x = -17.489125293 Simplifying x = -17.489125293

Solution

The solution to the problem is based on the solutions from the subproblems. x = {5.489125293, -17.489125293}

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