(x^2+6x-1200)=0

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Solution for (x^2+6x-1200)=0 equation:


Simplifying
(x2 + 6x + -1200) = 0

Reorder the terms:
(-1200 + 6x + x2) = 0

Remove parenthesis around (-1200 + 6x + x2)
-1200 + 6x + x2 = 0

Solving
-1200 + 6x + x2 = 0

Solving for variable 'x'.

Begin completing the square.

Move the constant term to the right:

Add '1200' to each side of the equation.
-1200 + 6x + 1200 + x2 = 0 + 1200

Reorder the terms:
-1200 + 1200 + 6x + x2 = 0 + 1200

Combine like terms: -1200 + 1200 = 0
0 + 6x + x2 = 0 + 1200
6x + x2 = 0 + 1200

Combine like terms: 0 + 1200 = 1200
6x + x2 = 1200

The x term is 6x.  Take half its coefficient (3).
Square it (9) and add it to both sides.

Add '9' to each side of the equation.
6x + 9 + x2 = 1200 + 9

Reorder the terms:
9 + 6x + x2 = 1200 + 9

Combine like terms: 1200 + 9 = 1209
9 + 6x + x2 = 1209

Factor a perfect square on the left side:
(x + 3)(x + 3) = 1209

Calculate the square root of the right side: 34.770677301

Break this problem into two subproblems by setting 
(x + 3) equal to 34.770677301 and -34.770677301.

Subproblem 1

x + 3 = 34.770677301 Simplifying x + 3 = 34.770677301 Reorder the terms: 3 + x = 34.770677301 Solving 3 + x = 34.770677301 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-3' to each side of the equation. 3 + -3 + x = 34.770677301 + -3 Combine like terms: 3 + -3 = 0 0 + x = 34.770677301 + -3 x = 34.770677301 + -3 Combine like terms: 34.770677301 + -3 = 31.770677301 x = 31.770677301 Simplifying x = 31.770677301

Subproblem 2

x + 3 = -34.770677301 Simplifying x + 3 = -34.770677301 Reorder the terms: 3 + x = -34.770677301 Solving 3 + x = -34.770677301 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-3' to each side of the equation. 3 + -3 + x = -34.770677301 + -3 Combine like terms: 3 + -3 = 0 0 + x = -34.770677301 + -3 x = -34.770677301 + -3 Combine like terms: -34.770677301 + -3 = -37.770677301 x = -37.770677301 Simplifying x = -37.770677301

Solution

The solution to the problem is based on the solutions from the subproblems. x = {31.770677301, -37.770677301}

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