-2x^2+10x-5=0

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Solution for -2x^2+10x-5=0 equation: 


Simplifying
-2x2 + 10x + -5 = 0

Reorder the terms:
-5 + 10x + -2x2 = 0

Solving
-5 + 10x + -2x2 = 0

Solving for variable 'x'.

Begin completing the square.  Divide all terms by
-2 the coefficient of the squared term: 

Divide each side by '-2'.
2.5 + -5x + x2 = 0

Move the constant term to the right:

Add '-2.5' to each side of the equation.
2.5 + -5x + -2.5 + x2 = 0 + -2.5

Reorder the terms:
2.5 + -2.5 + -5x + x2 = 0 + -2.5

Combine like terms: 2.5 + -2.5 = 0.0
0.0 + -5x + x2 = 0 + -2.5
-5x + x2 = 0 + -2.5

Combine like terms: 0 + -2.5 = -2.5
-5x + x2 = -2.5

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 = -2.5 + 6.25

Reorder the terms:
6.25 + -5x + x2 = -2.5 + 6.25

Combine like terms: -2.5 + 6.25 = 3.75
6.25 + -5x + x2 = 3.75

Factor a perfect square on the left side:
(x + -2.5)(x + -2.5) = 3.75

Calculate the square root of the right side: 1.936491673

Break this problem into two subproblems by setting 
(x + -2.5) equal to 1.936491673 and -1.936491673.


Subproblem 1
x + -2.5 = 1.936491673

Simplifying
x + -2.5 = 1.936491673

Reorder the terms:
-2.5 + x = 1.936491673

Solving
-2.5 + x = 1.936491673

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 = 1.936491673 + 2.5

Combine like terms: -2.5 + 2.5 = 0.0
0.0 + x = 1.936491673 + 2.5
x = 1.936491673 + 2.5

Combine like terms: 1.936491673 + 2.5 = 4.436491673
x = 4.436491673

Simplifying
x = 4.436491673


Subproblem 2
x + -2.5 = -1.936491673

Simplifying
x + -2.5 = -1.936491673

Reorder the terms:
-2.5 + x = -1.936491673

Solving
-2.5 + x = -1.936491673

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 = -1.936491673 + 2.5

Combine like terms: -2.5 + 2.5 = 0.0
0.0 + x = -1.936491673 + 2.5
x = -1.936491673 + 2.5

Combine like terms: -1.936491673 + 2.5 = 0.563508327
x = 0.563508327

Simplifying
x = 0.563508327


Solution
The solution to the problem is based on the solutions
from the subproblems.
x = {4.436491673, 0.563508327}

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