x^2+8x=950

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Solution for x^2+8x=950 equation:


Simplifying
x2 + 8x = 950

Reorder the terms:
8x + x2 = 950

Solving
8x + x2 = 950

Solving for variable 'x'.

Reorder the terms:
-950 + 8x + x2 = 950 + -950

Combine like terms: 950 + -950 = 0
-950 + 8x + x2 = 0

Begin completing the square.

Move the constant term to the right:

Add '950' to each side of the equation.
-950 + 8x + 950 + x2 = 0 + 950

Reorder the terms:
-950 + 950 + 8x + x2 = 0 + 950

Combine like terms: -950 + 950 = 0
0 + 8x + x2 = 0 + 950
8x + x2 = 0 + 950

Combine like terms: 0 + 950 = 950
8x + x2 = 950

The x term is 8x.  Take half its coefficient (4).
Square it (16) and add it to both sides.

Add '16' to each side of the equation.
8x + 16 + x2 = 950 + 16

Reorder the terms:
16 + 8x + x2 = 950 + 16

Combine like terms: 950 + 16 = 966
16 + 8x + x2 = 966

Factor a perfect square on the left side:
(x + 4)(x + 4) = 966

Calculate the square root of the right side: 31.080540536

Break this problem into two subproblems by setting 
(x + 4) equal to 31.080540536 and -31.080540536.

Subproblem 1

x + 4 = 31.080540536 Simplifying x + 4 = 31.080540536 Reorder the terms: 4 + x = 31.080540536 Solving 4 + x = 31.080540536 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-4' to each side of the equation. 4 + -4 + x = 31.080540536 + -4 Combine like terms: 4 + -4 = 0 0 + x = 31.080540536 + -4 x = 31.080540536 + -4 Combine like terms: 31.080540536 + -4 = 27.080540536 x = 27.080540536 Simplifying x = 27.080540536

Subproblem 2

x + 4 = -31.080540536 Simplifying x + 4 = -31.080540536 Reorder the terms: 4 + x = -31.080540536 Solving 4 + x = -31.080540536 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-4' to each side of the equation. 4 + -4 + x = -31.080540536 + -4 Combine like terms: 4 + -4 = 0 0 + x = -31.080540536 + -4 x = -31.080540536 + -4 Combine like terms: -31.080540536 + -4 = -35.080540536 x = -35.080540536 Simplifying x = -35.080540536

Solution

The solution to the problem is based on the solutions from the subproblems. x = {27.080540536, -35.080540536}

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