x*(x+5)=63

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Solution for x*(x+5)=63 equation: 


Simplifying
x(x + 5) = 63

Reorder the terms:
x(5 + x) = 63
(5 * x + x * x) = 63
(5x + x2) = 63

Solving
5x + x2 = 63

Solving for variable 'x'.

Reorder the terms:
-63 + 5x + x2 = 63 + -63

Combine like terms: 63 + -63 = 0
-63 + 5x + x2 = 0

Begin completing the square.

Move the constant term to the right:

Add '63' to each side of the equation.
-63 + 5x + 63 + x2 = 0 + 63

Reorder the terms:
-63 + 63 + 5x + x2 = 0 + 63

Combine like terms: -63 + 63 = 0
0 + 5x + x2 = 0 + 63
5x + x2 = 0 + 63

Combine like terms: 0 + 63 = 63
5x + x2 = 63

The x term is 5x.  Take half its coefficient (2.5).
Square it (6.25) and add it to both sides.

Add '6.25' to each side of the equation.
5x + 6.25 + x2 = 63 + 6.25

Reorder the terms:
6.25 + 5x + x2 = 63 + 6.25

Combine like terms: 63 + 6.25 = 69.25
6.25 + 5x + x2 = 69.25

Factor a perfect square on the left side:
(x + 2.5)(x + 2.5) = 69.25

Calculate the square root of the right side: 8.321658489

Break this problem into two subproblems by setting 
(x + 2.5) equal to 8.321658489 and -8.321658489.


Subproblem 1
x + 2.5 = 8.321658489

Simplifying
x + 2.5 = 8.321658489

Reorder the terms:
2.5 + x = 8.321658489

Solving
2.5 + x = 8.321658489

Solving for variable 'x'.

Move all terms containing x to the left, all other terms to the right.

Add '-2.5' to each side of the equation.
2.5 + -2.5 + x = 8.321658489 + -2.5

Combine like terms: 2.5 + -2.5 = 0.0
0.0 + x = 8.321658489 + -2.5
x = 8.321658489 + -2.5

Combine like terms: 8.321658489 + -2.5 = 5.821658489
x = 5.821658489

Simplifying
x = 5.821658489


Subproblem 2
x + 2.5 = -8.321658489

Simplifying
x + 2.5 = -8.321658489

Reorder the terms:
2.5 + x = -8.321658489

Solving
2.5 + x = -8.321658489

Solving for variable 'x'.

Move all terms containing x to the left, all other terms to the right.

Add '-2.5' to each side of the equation.
2.5 + -2.5 + x = -8.321658489 + -2.5

Combine like terms: 2.5 + -2.5 = 0.0
0.0 + x = -8.321658489 + -2.5
x = -8.321658489 + -2.5

Combine like terms: -8.321658489 + -2.5 = -10.821658489
x = -10.821658489

Simplifying
x = -10.821658489


Solution
The solution to the problem is based on the solutions
from the subproblems.
x = {5.821658489, -10.821658489}

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