x^2-4.5x-2.7=0

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Solution for x^2-4.5x-2.7=0 equation: 


Simplifying
x2 + -4.5x + -2.7 = 0

Reorder the terms:
-2.7 + -4.5x + x2 = 0

Solving
-2.7 + -4.5x + x2 = 0

Solving for variable 'x'.

Begin completing the square.

Move the constant term to the right:

Add '2.7' to each side of the equation.
-2.7 + -4.5x + 2.7 + x2 = 0 + 2.7

Reorder the terms:
-2.7 + 2.7 + -4.5x + x2 = 0 + 2.7

Combine like terms: -2.7 + 2.7 = 0.0
0.0 + -4.5x + x2 = 0 + 2.7
-4.5x + x2 = 0 + 2.7

Combine like terms: 0 + 2.7 = 2.7
-4.5x + x2 = 2.7

The x term is -4.5x.  Take half its coefficient (-2.25).
Square it (5.0625) and add it to both sides.

Add '5.0625' to each side of the equation.
-4.5x + 5.0625 + x2 = 2.7 + 5.0625

Reorder the terms:
5.0625 + -4.5x + x2 = 2.7 + 5.0625

Combine like terms: 2.7 + 5.0625 = 7.7625
5.0625 + -4.5x + x2 = 7.7625

Factor a perfect square on the left side:
(x + -2.25)(x + -2.25) = 7.7625

Calculate the square root of the right side: 2.786126343

Break this problem into two subproblems by setting 
(x + -2.25) equal to 2.786126343 and -2.786126343.


Subproblem 1
x + -2.25 = 2.786126343

Simplifying
x + -2.25 = 2.786126343

Reorder the terms:
-2.25 + x = 2.786126343

Solving
-2.25 + x = 2.786126343

Solving for variable 'x'.

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

Add '2.25' to each side of the equation.
-2.25 + 2.25 + x = 2.786126343 + 2.25

Combine like terms: -2.25 + 2.25 = 0.00
0.00 + x = 2.786126343 + 2.25
x = 2.786126343 + 2.25

Combine like terms: 2.786126343 + 2.25 = 5.036126343
x = 5.036126343

Simplifying
x = 5.036126343


Subproblem 2
x + -2.25 = -2.786126343

Simplifying
x + -2.25 = -2.786126343

Reorder the terms:
-2.25 + x = -2.786126343

Solving
-2.25 + x = -2.786126343

Solving for variable 'x'.

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

Add '2.25' to each side of the equation.
-2.25 + 2.25 + x = -2.786126343 + 2.25

Combine like terms: -2.25 + 2.25 = 0.00
0.00 + x = -2.786126343 + 2.25
x = -2.786126343 + 2.25

Combine like terms: -2.786126343 + 2.25 = -0.536126343
x = -0.536126343

Simplifying
x = -0.536126343


Solution
The solution to the problem is based on the solutions
from the subproblems.
x = {5.036126343, -0.536126343}

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