x^2+10x+14=8

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Solution for x^2+10x+14=8 equation:


Simplifying
x2 + 10x + 14 = 8

Reorder the terms:
14 + 10x + x2 = 8

Solving
14 + 10x + x2 = 8

Solving for variable 'x'.

Reorder the terms:
14 + -8 + 10x + x2 = 8 + -8

Combine like terms: 14 + -8 = 6
6 + 10x + x2 = 8 + -8

Combine like terms: 8 + -8 = 0
6 + 10x + x2 = 0

Begin completing the square.

Move the constant term to the right:

Add '-6' to each side of the equation.
6 + 10x + -6 + x2 = 0 + -6

Reorder the terms:
6 + -6 + 10x + x2 = 0 + -6

Combine like terms: 6 + -6 = 0
0 + 10x + x2 = 0 + -6
10x + x2 = 0 + -6

Combine like terms: 0 + -6 = -6
10x + x2 = -6

The x term is 10x.  Take half its coefficient (5).
Square it (25) and add it to both sides.

Add '25' to each side of the equation.
10x + 25 + x2 = -6 + 25

Reorder the terms:
25 + 10x + x2 = -6 + 25

Combine like terms: -6 + 25 = 19
25 + 10x + x2 = 19

Factor a perfect square on the left side:
(x + 5)(x + 5) = 19

Calculate the square root of the right side: 4.358898944

Break this problem into two subproblems by setting 
(x + 5) equal to 4.358898944 and -4.358898944.

Subproblem 1

x + 5 = 4.358898944 Simplifying x + 5 = 4.358898944 Reorder the terms: 5 + x = 4.358898944 Solving 5 + x = 4.358898944 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-5' to each side of the equation. 5 + -5 + x = 4.358898944 + -5 Combine like terms: 5 + -5 = 0 0 + x = 4.358898944 + -5 x = 4.358898944 + -5 Combine like terms: 4.358898944 + -5 = -0.641101056 x = -0.641101056 Simplifying x = -0.641101056

Subproblem 2

x + 5 = -4.358898944 Simplifying x + 5 = -4.358898944 Reorder the terms: 5 + x = -4.358898944 Solving 5 + x = -4.358898944 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-5' to each side of the equation. 5 + -5 + x = -4.358898944 + -5 Combine like terms: 5 + -5 = 0 0 + x = -4.358898944 + -5 x = -4.358898944 + -5 Combine like terms: -4.358898944 + -5 = -9.358898944 x = -9.358898944 Simplifying x = -9.358898944

Solution

The solution to the problem is based on the solutions from the subproblems. x = {-0.641101056, -9.358898944}

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