2x^2-9.5x+5=0

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Solution for 2x^2-9.5x+5=0 equation:


Simplifying
2x2 + -9.5x + 5 = 0

Reorder the terms:
5 + -9.5x + 2x2 = 0

Solving
5 + -9.5x + 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 + -4.75x + x2 = 0

Move the constant term to the right:

Add '-2.5' to each side of the equation.
2.5 + -4.75x + -2.5 + x2 = 0 + -2.5

Reorder the terms:
2.5 + -2.5 + -4.75x + x2 = 0 + -2.5

Combine like terms: 2.5 + -2.5 = 0.0
0.0 + -4.75x + x2 = 0 + -2.5
-4.75x + x2 = 0 + -2.5

Combine like terms: 0 + -2.5 = -2.5
-4.75x + x2 = -2.5

The x term is -4.75x.  Take half its coefficient (-2.375).
Square it (5.640625) and add it to both sides.

Add '5.640625' to each side of the equation.
-4.75x + 5.640625 + x2 = -2.5 + 5.640625

Reorder the terms:
5.640625 + -4.75x + x2 = -2.5 + 5.640625

Combine like terms: -2.5 + 5.640625 = 3.140625
5.640625 + -4.75x + x2 = 3.140625

Factor a perfect square on the left side:
(x + -2.375)(x + -2.375) = 3.140625

Calculate the square root of the right side: 1.77218086

Break this problem into two subproblems by setting 
(x + -2.375) equal to 1.77218086 and -1.77218086.

Subproblem 1

x + -2.375 = 1.77218086 Simplifying x + -2.375 = 1.77218086 Reorder the terms: -2.375 + x = 1.77218086 Solving -2.375 + x = 1.77218086 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '2.375' to each side of the equation. -2.375 + 2.375 + x = 1.77218086 + 2.375 Combine like terms: -2.375 + 2.375 = 0.000 0.000 + x = 1.77218086 + 2.375 x = 1.77218086 + 2.375 Combine like terms: 1.77218086 + 2.375 = 4.14718086 x = 4.14718086 Simplifying x = 4.14718086

Subproblem 2

x + -2.375 = -1.77218086 Simplifying x + -2.375 = -1.77218086 Reorder the terms: -2.375 + x = -1.77218086 Solving -2.375 + x = -1.77218086 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '2.375' to each side of the equation. -2.375 + 2.375 + x = -1.77218086 + 2.375 Combine like terms: -2.375 + 2.375 = 0.000 0.000 + x = -1.77218086 + 2.375 x = -1.77218086 + 2.375 Combine like terms: -1.77218086 + 2.375 = 0.60281914 x = 0.60281914 Simplifying x = 0.60281914

Solution

The solution to the problem is based on the solutions from the subproblems. x = {4.14718086, 0.60281914}

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