(x+5)*(x+5)=10

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Solution for (x+5)*(x+5)=10 equation:


Simplifying
(x + 5)(x + 5) = 10

Reorder the terms:
(5 + x)(x + 5) = 10

Reorder the terms:
(5 + x)(5 + x) = 10

Multiply (5 + x) * (5 + x)
(5(5 + x) + x(5 + x)) = 10
((5 * 5 + x * 5) + x(5 + x)) = 10
((25 + 5x) + x(5 + x)) = 10
(25 + 5x + (5 * x + x * x)) = 10
(25 + 5x + (5x + x2)) = 10

Combine like terms: 5x + 5x = 10x
(25 + 10x + x2) = 10

Solving
25 + 10x + x2 = 10

Solving for variable 'x'.

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

Combine like terms: 25 + -10 = 15
15 + 10x + x2 = 10 + -10

Combine like terms: 10 + -10 = 0
15 + 10x + x2 = 0

Begin completing the square.

Move the constant term to the right:

Add '-15' to each side of the equation.
15 + 10x + -15 + x2 = 0 + -15

Reorder the terms:
15 + -15 + 10x + x2 = 0 + -15

Combine like terms: 15 + -15 = 0
0 + 10x + x2 = 0 + -15
10x + x2 = 0 + -15

Combine like terms: 0 + -15 = -15
10x + x2 = -15

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 = -15 + 25

Reorder the terms:
25 + 10x + x2 = -15 + 25

Combine like terms: -15 + 25 = 10
25 + 10x + x2 = 10

Factor a perfect square on the left side:
(x + 5)(x + 5) = 10

Calculate the square root of the right side: 3.16227766

Break this problem into two subproblems by setting 
(x + 5) equal to 3.16227766 and -3.16227766.

Subproblem 1

x + 5 = 3.16227766 Simplifying x + 5 = 3.16227766 Reorder the terms: 5 + x = 3.16227766 Solving 5 + x = 3.16227766 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 = 3.16227766 + -5 Combine like terms: 5 + -5 = 0 0 + x = 3.16227766 + -5 x = 3.16227766 + -5 Combine like terms: 3.16227766 + -5 = -1.83772234 x = -1.83772234 Simplifying x = -1.83772234

Subproblem 2

x + 5 = -3.16227766 Simplifying x + 5 = -3.16227766 Reorder the terms: 5 + x = -3.16227766 Solving 5 + x = -3.16227766 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 = -3.16227766 + -5 Combine like terms: 5 + -5 = 0 0 + x = -3.16227766 + -5 x = -3.16227766 + -5 Combine like terms: -3.16227766 + -5 = -8.16227766 x = -8.16227766 Simplifying x = -8.16227766

Solution

The solution to the problem is based on the solutions from the subproblems. x = {-1.83772234, -8.16227766}

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