x^2+10x+18+5=

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Solution for x^2+10x+18+5= equation:


Simplifying
x2 + 10x + 18 + 5 = 0

Reorder the terms:
18 + 5 + 10x + x2 = 0

Combine like terms: 18 + 5 = 23
23 + 10x + x2 = 0

Solving
23 + 10x + x2 = 0

Solving for variable 'x'.

Begin completing the square.

Move the constant term to the right:

Add '-23' to each side of the equation.
23 + 10x + -23 + x2 = 0 + -23

Reorder the terms:
23 + -23 + 10x + x2 = 0 + -23

Combine like terms: 23 + -23 = 0
0 + 10x + x2 = 0 + -23
10x + x2 = 0 + -23

Combine like terms: 0 + -23 = -23
10x + x2 = -23

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 = -23 + 25

Reorder the terms:
25 + 10x + x2 = -23 + 25

Combine like terms: -23 + 25 = 2
25 + 10x + x2 = 2

Factor a perfect square on the left side:
(x + 5)(x + 5) = 2

Calculate the square root of the right side: 1.414213562

Break this problem into two subproblems by setting 
(x + 5) equal to 1.414213562 and -1.414213562.

Subproblem 1

x + 5 = 1.414213562 Simplifying x + 5 = 1.414213562 Reorder the terms: 5 + x = 1.414213562 Solving 5 + x = 1.414213562 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 = 1.414213562 + -5 Combine like terms: 5 + -5 = 0 0 + x = 1.414213562 + -5 x = 1.414213562 + -5 Combine like terms: 1.414213562 + -5 = -3.585786438 x = -3.585786438 Simplifying x = -3.585786438

Subproblem 2

x + 5 = -1.414213562 Simplifying x + 5 = -1.414213562 Reorder the terms: 5 + x = -1.414213562 Solving 5 + x = -1.414213562 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 = -1.414213562 + -5 Combine like terms: 5 + -5 = 0 0 + x = -1.414213562 + -5 x = -1.414213562 + -5 Combine like terms: -1.414213562 + -5 = -6.414213562 x = -6.414213562 Simplifying x = -6.414213562

Solution

The solution to the problem is based on the solutions from the subproblems. x = {-3.585786438, -6.414213562}

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