3.8x^2-25x+23=0

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Solution for 3.8x^2-25x+23=0 equation:


Simplifying
3.8x2 + -25x + 23 = 0

Reorder the terms:
23 + -25x + 3.8x2 = 0

Solving
23 + -25x + 3.8x2 = 0

Solving for variable 'x'.

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

Divide each side by '3.8'.
6.052631579 + -6.578947368x + x2 = 0

Move the constant term to the right:

Add '-6.052631579' to each side of the equation.
6.052631579 + -6.578947368x + -6.052631579 + x2 = 0 + -6.052631579

Reorder the terms:
6.052631579 + -6.052631579 + -6.578947368x + x2 = 0 + -6.052631579

Combine like terms: 6.052631579 + -6.052631579 = 0.000000000
0.000000000 + -6.578947368x + x2 = 0 + -6.052631579
-6.578947368x + x2 = 0 + -6.052631579

Combine like terms: 0 + -6.052631579 = -6.052631579
-6.578947368x + x2 = -6.052631579

The x term is -6.578947368x.  Take half its coefficient (-3.289473684).
Square it (10.82063712) and add it to both sides.

Add '10.82063712' to each side of the equation.
-6.578947368x + 10.82063712 + x2 = -6.052631579 + 10.82063712

Reorder the terms:
10.82063712 + -6.578947368x + x2 = -6.052631579 + 10.82063712

Combine like terms: -6.052631579 + 10.82063712 = 4.768005541
10.82063712 + -6.578947368x + x2 = 4.768005541

Factor a perfect square on the left side:
(x + -3.289473684)(x + -3.289473684) = 4.768005541

Calculate the square root of the right side: 2.183576319

Break this problem into two subproblems by setting 
(x + -3.289473684) equal to 2.183576319 and -2.183576319.

Subproblem 1

x + -3.289473684 = 2.183576319 Simplifying x + -3.289473684 = 2.183576319 Reorder the terms: -3.289473684 + x = 2.183576319 Solving -3.289473684 + x = 2.183576319 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '3.289473684' to each side of the equation. -3.289473684 + 3.289473684 + x = 2.183576319 + 3.289473684 Combine like terms: -3.289473684 + 3.289473684 = 0.000000000 0.000000000 + x = 2.183576319 + 3.289473684 x = 2.183576319 + 3.289473684 Combine like terms: 2.183576319 + 3.289473684 = 5.473050003 x = 5.473050003 Simplifying x = 5.473050003

Subproblem 2

x + -3.289473684 = -2.183576319 Simplifying x + -3.289473684 = -2.183576319 Reorder the terms: -3.289473684 + x = -2.183576319 Solving -3.289473684 + x = -2.183576319 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '3.289473684' to each side of the equation. -3.289473684 + 3.289473684 + x = -2.183576319 + 3.289473684 Combine like terms: -3.289473684 + 3.289473684 = 0.000000000 0.000000000 + x = -2.183576319 + 3.289473684 x = -2.183576319 + 3.289473684 Combine like terms: -2.183576319 + 3.289473684 = 1.105897365 x = 1.105897365 Simplifying x = 1.105897365

Solution

The solution to the problem is based on the solutions from the subproblems. x = {5.473050003, 1.105897365}

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