-10x^2+38x-25=0

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Solution for -10x^2+38x-25=0 equation:


Simplifying
-10x2 + 38x + -25 = 0

Reorder the terms:
-25 + 38x + -10x2 = 0

Solving
-25 + 38x + -10x2 = 0

Solving for variable 'x'.

Begin completing the square.  Divide all terms by
-10 the coefficient of the squared term: 

Divide each side by '-10'.
2.5 + -3.8x + x2 = 0

Move the constant term to the right:

Add '-2.5' to each side of the equation.
2.5 + -3.8x + -2.5 + x2 = 0 + -2.5

Reorder the terms:
2.5 + -2.5 + -3.8x + x2 = 0 + -2.5

Combine like terms: 2.5 + -2.5 = 0.0
0.0 + -3.8x + x2 = 0 + -2.5
-3.8x + x2 = 0 + -2.5

Combine like terms: 0 + -2.5 = -2.5
-3.8x + x2 = -2.5

The x term is -3.8x.  Take half its coefficient (-1.9).
Square it (3.61) and add it to both sides.

Add '3.61' to each side of the equation.
-3.8x + 3.61 + x2 = -2.5 + 3.61

Reorder the terms:
3.61 + -3.8x + x2 = -2.5 + 3.61

Combine like terms: -2.5 + 3.61 = 1.11
3.61 + -3.8x + x2 = 1.11

Factor a perfect square on the left side:
(x + -1.9)(x + -1.9) = 1.11

Calculate the square root of the right side: 1.053565375

Break this problem into two subproblems by setting 
(x + -1.9) equal to 1.053565375 and -1.053565375.

Subproblem 1

x + -1.9 = 1.053565375 Simplifying x + -1.9 = 1.053565375 Reorder the terms: -1.9 + x = 1.053565375 Solving -1.9 + x = 1.053565375 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '1.9' to each side of the equation. -1.9 + 1.9 + x = 1.053565375 + 1.9 Combine like terms: -1.9 + 1.9 = 0.0 0.0 + x = 1.053565375 + 1.9 x = 1.053565375 + 1.9 Combine like terms: 1.053565375 + 1.9 = 2.953565375 x = 2.953565375 Simplifying x = 2.953565375

Subproblem 2

x + -1.9 = -1.053565375 Simplifying x + -1.9 = -1.053565375 Reorder the terms: -1.9 + x = -1.053565375 Solving -1.9 + x = -1.053565375 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '1.9' to each side of the equation. -1.9 + 1.9 + x = -1.053565375 + 1.9 Combine like terms: -1.9 + 1.9 = 0.0 0.0 + x = -1.053565375 + 1.9 x = -1.053565375 + 1.9 Combine like terms: -1.053565375 + 1.9 = 0.846434625 x = 0.846434625 Simplifying x = 0.846434625

Solution

The solution to the problem is based on the solutions from the subproblems. x = {2.953565375, 0.846434625}

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