x^2+6x=50

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Solution for x^2+6x=50 equation:


Simplifying
x2 + 6x = 50

Reorder the terms:
6x + x2 = 50

Solving
6x + x2 = 50

Solving for variable 'x'.

Reorder the terms:
-50 + 6x + x2 = 50 + -50

Combine like terms: 50 + -50 = 0
-50 + 6x + x2 = 0

Begin completing the square.

Move the constant term to the right:

Add '50' to each side of the equation.
-50 + 6x + 50 + x2 = 0 + 50

Reorder the terms:
-50 + 50 + 6x + x2 = 0 + 50

Combine like terms: -50 + 50 = 0
0 + 6x + x2 = 0 + 50
6x + x2 = 0 + 50

Combine like terms: 0 + 50 = 50
6x + x2 = 50

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 = 50 + 9

Reorder the terms:
9 + 6x + x2 = 50 + 9

Combine like terms: 50 + 9 = 59
9 + 6x + x2 = 59

Factor a perfect square on the left side:
(x + 3)(x + 3) = 59

Calculate the square root of the right side: 7.681145748

Break this problem into two subproblems by setting 
(x + 3) equal to 7.681145748 and -7.681145748.

Subproblem 1

x + 3 = 7.681145748 Simplifying x + 3 = 7.681145748 Reorder the terms: 3 + x = 7.681145748 Solving 3 + x = 7.681145748 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 = 7.681145748 + -3 Combine like terms: 3 + -3 = 0 0 + x = 7.681145748 + -3 x = 7.681145748 + -3 Combine like terms: 7.681145748 + -3 = 4.681145748 x = 4.681145748 Simplifying x = 4.681145748

Subproblem 2

x + 3 = -7.681145748 Simplifying x + 3 = -7.681145748 Reorder the terms: 3 + x = -7.681145748 Solving 3 + x = -7.681145748 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 = -7.681145748 + -3 Combine like terms: 3 + -3 = 0 0 + x = -7.681145748 + -3 x = -7.681145748 + -3 Combine like terms: -7.681145748 + -3 = -10.681145748 x = -10.681145748 Simplifying x = -10.681145748

Solution

The solution to the problem is based on the solutions from the subproblems. x = {4.681145748, -10.681145748}

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