x^2=-10x-14

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Solution for x^2=-10x-14 equation:


Simplifying
x2 = -10x + -14

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

Solving
x2 = -14 + -10x

Solving for variable 'x'.

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

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

Combine like terms: -14 + 14 = 0
14 + 10x + x2 = 0 + -10x + 10x
14 + 10x + x2 = -10x + 10x

Combine like terms: -10x + 10x = 0
14 + 10x + x2 = 0

Begin completing the square.

Move the constant term to the right:

Add '-14' to each side of the equation.
14 + 10x + -14 + x2 = 0 + -14

Reorder the terms:
14 + -14 + 10x + x2 = 0 + -14

Combine like terms: 14 + -14 = 0
0 + 10x + x2 = 0 + -14
10x + x2 = 0 + -14

Combine like terms: 0 + -14 = -14
10x + x2 = -14

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 = -14 + 25

Reorder the terms:
25 + 10x + x2 = -14 + 25

Combine like terms: -14 + 25 = 11
25 + 10x + x2 = 11

Factor a perfect square on the left side:
(x + 5)(x + 5) = 11

Calculate the square root of the right side: 3.31662479

Break this problem into two subproblems by setting 
(x + 5) equal to 3.31662479 and -3.31662479.

Subproblem 1

x + 5 = 3.31662479 Simplifying x + 5 = 3.31662479 Reorder the terms: 5 + x = 3.31662479 Solving 5 + x = 3.31662479 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 = 3.31662479 + -5 Combine like terms: 5 + -5 = 0 0 + x = 3.31662479 + -5 x = 3.31662479 + -5 Combine like terms: 3.31662479 + -5 = -1.68337521 x = -1.68337521 Simplifying x = -1.68337521

Subproblem 2

x + 5 = -3.31662479 Simplifying x + 5 = -3.31662479 Reorder the terms: 5 + x = -3.31662479 Solving 5 + x = -3.31662479 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 = -3.31662479 + -5 Combine like terms: 5 + -5 = 0 0 + x = -3.31662479 + -5 x = -3.31662479 + -5 Combine like terms: -3.31662479 + -5 = -8.31662479 x = -8.31662479 Simplifying x = -8.31662479

Solution

The solution to the problem is based on the solutions from the subproblems. x = {-1.68337521, -8.31662479}

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