x^2+5x-4.5=0

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Solution for x^2+5x-4.5=0 equation: 


Simplifying
x2 + 5x + -4.5 = 0

Reorder the terms:
-4.5 + 5x + x2 = 0

Solving
-4.5 + 5x + x2 = 0

Solving for variable 'x'.

Begin completing the square.

Move the constant term to the right:

Add '4.5' to each side of the equation.
-4.5 + 5x + 4.5 + x2 = 0 + 4.5

Reorder the terms:
-4.5 + 4.5 + 5x + x2 = 0 + 4.5

Combine like terms: -4.5 + 4.5 = 0.0
0.0 + 5x + x2 = 0 + 4.5
5x + x2 = 0 + 4.5

Combine like terms: 0 + 4.5 = 4.5
5x + x2 = 4.5

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 = 4.5 + 6.25

Reorder the terms:
6.25 + 5x + x2 = 4.5 + 6.25

Combine like terms: 4.5 + 6.25 = 10.75
6.25 + 5x + x2 = 10.75

Factor a perfect square on the left side:
(x + 2.5)(x + 2.5) = 10.75

Calculate the square root of the right side: 3.278719262

Break this problem into two subproblems by setting 
(x + 2.5) equal to 3.278719262 and -3.278719262.


Subproblem 1
x + 2.5 = 3.278719262

Simplifying
x + 2.5 = 3.278719262

Reorder the terms:
2.5 + x = 3.278719262

Solving
2.5 + x = 3.278719262

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 = 3.278719262 + -2.5

Combine like terms: 2.5 + -2.5 = 0.0
0.0 + x = 3.278719262 + -2.5
x = 3.278719262 + -2.5

Combine like terms: 3.278719262 + -2.5 = 0.778719262
x = 0.778719262

Simplifying
x = 0.778719262


Subproblem 2
x + 2.5 = -3.278719262

Simplifying
x + 2.5 = -3.278719262

Reorder the terms:
2.5 + x = -3.278719262

Solving
2.5 + x = -3.278719262

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 = -3.278719262 + -2.5

Combine like terms: 2.5 + -2.5 = 0.0
0.0 + x = -3.278719262 + -2.5
x = -3.278719262 + -2.5

Combine like terms: -3.278719262 + -2.5 = -5.778719262
x = -5.778719262

Simplifying
x = -5.778719262


Solution
The solution to the problem is based on the solutions
from the subproblems.
x = {0.778719262, -5.778719262}

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