x^2+16x=-50

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Solution for x^2+16x=-50 equation:


Simplifying
x2 + 16x = -50

Reorder the terms:
16x + x2 = -50

Solving
16x + x2 = -50

Solving for variable 'x'.

Reorder the terms:
50 + 16x + x2 = -50 + 50

Combine like terms: -50 + 50 = 0
50 + 16x + x2 = 0

Begin completing the square.

Move the constant term to the right:

Add '-50' to each side of the equation.
50 + 16x + -50 + x2 = 0 + -50

Reorder the terms:
50 + -50 + 16x + x2 = 0 + -50

Combine like terms: 50 + -50 = 0
0 + 16x + x2 = 0 + -50
16x + x2 = 0 + -50

Combine like terms: 0 + -50 = -50
16x + x2 = -50

The x term is 16x.  Take half its coefficient (8).
Square it (64) and add it to both sides.

Add '64' to each side of the equation.
16x + 64 + x2 = -50 + 64

Reorder the terms:
64 + 16x + x2 = -50 + 64

Combine like terms: -50 + 64 = 14
64 + 16x + x2 = 14

Factor a perfect square on the left side:
(x + 8)(x + 8) = 14

Calculate the square root of the right side: 3.741657387

Break this problem into two subproblems by setting 
(x + 8) equal to 3.741657387 and -3.741657387.

Subproblem 1

x + 8 = 3.741657387 Simplifying x + 8 = 3.741657387 Reorder the terms: 8 + x = 3.741657387 Solving 8 + x = 3.741657387 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-8' to each side of the equation. 8 + -8 + x = 3.741657387 + -8 Combine like terms: 8 + -8 = 0 0 + x = 3.741657387 + -8 x = 3.741657387 + -8 Combine like terms: 3.741657387 + -8 = -4.258342613 x = -4.258342613 Simplifying x = -4.258342613

Subproblem 2

x + 8 = -3.741657387 Simplifying x + 8 = -3.741657387 Reorder the terms: 8 + x = -3.741657387 Solving 8 + x = -3.741657387 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-8' to each side of the equation. 8 + -8 + x = -3.741657387 + -8 Combine like terms: 8 + -8 = 0 0 + x = -3.741657387 + -8 x = -3.741657387 + -8 Combine like terms: -3.741657387 + -8 = -11.741657387 x = -11.741657387 Simplifying x = -11.741657387

Solution

The solution to the problem is based on the solutions from the subproblems. x = {-4.258342613, -11.741657387}

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