x^2+16x=250

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Solution for x^2+16x=250 equation:


Simplifying
x2 + 16x = 250

Reorder the terms:
16x + x2 = 250

Solving
16x + x2 = 250

Solving for variable 'x'.

Reorder the terms:
-250 + 16x + x2 = 250 + -250

Combine like terms: 250 + -250 = 0
-250 + 16x + x2 = 0

Begin completing the square.

Move the constant term to the right:

Add '250' to each side of the equation.
-250 + 16x + 250 + x2 = 0 + 250

Reorder the terms:
-250 + 250 + 16x + x2 = 0 + 250

Combine like terms: -250 + 250 = 0
0 + 16x + x2 = 0 + 250
16x + x2 = 0 + 250

Combine like terms: 0 + 250 = 250
16x + x2 = 250

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 = 250 + 64

Reorder the terms:
64 + 16x + x2 = 250 + 64

Combine like terms: 250 + 64 = 314
64 + 16x + x2 = 314

Factor a perfect square on the left side:
(x + 8)(x + 8) = 314

Calculate the square root of the right side: 17.720045147

Break this problem into two subproblems by setting 
(x + 8) equal to 17.720045147 and -17.720045147.

Subproblem 1

x + 8 = 17.720045147 Simplifying x + 8 = 17.720045147 Reorder the terms: 8 + x = 17.720045147 Solving 8 + x = 17.720045147 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 = 17.720045147 + -8 Combine like terms: 8 + -8 = 0 0 + x = 17.720045147 + -8 x = 17.720045147 + -8 Combine like terms: 17.720045147 + -8 = 9.720045147 x = 9.720045147 Simplifying x = 9.720045147

Subproblem 2

x + 8 = -17.720045147 Simplifying x + 8 = -17.720045147 Reorder the terms: 8 + x = -17.720045147 Solving 8 + x = -17.720045147 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 = -17.720045147 + -8 Combine like terms: 8 + -8 = 0 0 + x = -17.720045147 + -8 x = -17.720045147 + -8 Combine like terms: -17.720045147 + -8 = -25.720045147 x = -25.720045147 Simplifying x = -25.720045147

Solution

The solution to the problem is based on the solutions from the subproblems. x = {9.720045147, -25.720045147}

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