x^2+6x-344=0

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Solution for x^2+6x-344=0 equation:


Simplifying
x2 + 6x + -344 = 0

Reorder the terms:
-344 + 6x + x2 = 0

Solving
-344 + 6x + x2 = 0

Solving for variable 'x'.

Begin completing the square.

Move the constant term to the right:

Add '344' to each side of the equation.
-344 + 6x + 344 + x2 = 0 + 344

Reorder the terms:
-344 + 344 + 6x + x2 = 0 + 344

Combine like terms: -344 + 344 = 0
0 + 6x + x2 = 0 + 344
6x + x2 = 0 + 344

Combine like terms: 0 + 344 = 344
6x + x2 = 344

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 = 344 + 9

Reorder the terms:
9 + 6x + x2 = 344 + 9

Combine like terms: 344 + 9 = 353
9 + 6x + x2 = 353

Factor a perfect square on the left side:
(x + 3)(x + 3) = 353

Calculate the square root of the right side: 18.788294228

Break this problem into two subproblems by setting 
(x + 3) equal to 18.788294228 and -18.788294228.

Subproblem 1

x + 3 = 18.788294228 Simplifying x + 3 = 18.788294228 Reorder the terms: 3 + x = 18.788294228 Solving 3 + x = 18.788294228 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 = 18.788294228 + -3 Combine like terms: 3 + -3 = 0 0 + x = 18.788294228 + -3 x = 18.788294228 + -3 Combine like terms: 18.788294228 + -3 = 15.788294228 x = 15.788294228 Simplifying x = 15.788294228

Subproblem 2

x + 3 = -18.788294228 Simplifying x + 3 = -18.788294228 Reorder the terms: 3 + x = -18.788294228 Solving 3 + x = -18.788294228 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 = -18.788294228 + -3 Combine like terms: 3 + -3 = 0 0 + x = -18.788294228 + -3 x = -18.788294228 + -3 Combine like terms: -18.788294228 + -3 = -21.788294228 x = -21.788294228 Simplifying x = -21.788294228

Solution

The solution to the problem is based on the solutions from the subproblems. x = {15.788294228, -21.788294228}

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