x^2+12x=600

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Solution for x^2+12x=600 equation:


Simplifying
x2 + 12x = 600

Reorder the terms:
12x + x2 = 600

Solving
12x + x2 = 600

Solving for variable 'x'.

Reorder the terms:
-600 + 12x + x2 = 600 + -600

Combine like terms: 600 + -600 = 0
-600 + 12x + x2 = 0

Begin completing the square.

Move the constant term to the right:

Add '600' to each side of the equation.
-600 + 12x + 600 + x2 = 0 + 600

Reorder the terms:
-600 + 600 + 12x + x2 = 0 + 600

Combine like terms: -600 + 600 = 0
0 + 12x + x2 = 0 + 600
12x + x2 = 0 + 600

Combine like terms: 0 + 600 = 600
12x + x2 = 600

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 = 600 + 36

Reorder the terms:
36 + 12x + x2 = 600 + 36

Combine like terms: 600 + 36 = 636
36 + 12x + x2 = 636

Factor a perfect square on the left side:
(x + 6)(x + 6) = 636

Calculate the square root of the right side: 25.219040426

Break this problem into two subproblems by setting 
(x + 6) equal to 25.219040426 and -25.219040426.

Subproblem 1

x + 6 = 25.219040426 Simplifying x + 6 = 25.219040426 Reorder the terms: 6 + x = 25.219040426 Solving 6 + x = 25.219040426 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 = 25.219040426 + -6 Combine like terms: 6 + -6 = 0 0 + x = 25.219040426 + -6 x = 25.219040426 + -6 Combine like terms: 25.219040426 + -6 = 19.219040426 x = 19.219040426 Simplifying x = 19.219040426

Subproblem 2

x + 6 = -25.219040426 Simplifying x + 6 = -25.219040426 Reorder the terms: 6 + x = -25.219040426 Solving 6 + x = -25.219040426 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 = -25.219040426 + -6 Combine like terms: 6 + -6 = 0 0 + x = -25.219040426 + -6 x = -25.219040426 + -6 Combine like terms: -25.219040426 + -6 = -31.219040426 x = -31.219040426 Simplifying x = -31.219040426

Solution

The solution to the problem is based on the solutions from the subproblems. x = {19.219040426, -31.219040426}

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