8x^2-23x+3=0

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Solution for 8x^2-23x+3=0 equation:


Simplifying
8x2 + -23x + 3 = 0

Reorder the terms:
3 + -23x + 8x2 = 0

Solving
3 + -23x + 8x2 = 0

Solving for variable 'x'.

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

Divide each side by '8'.
0.375 + -2.875x + x2 = 0

Move the constant term to the right:

Add '-0.375' to each side of the equation.
0.375 + -2.875x + -0.375 + x2 = 0 + -0.375

Reorder the terms:
0.375 + -0.375 + -2.875x + x2 = 0 + -0.375

Combine like terms: 0.375 + -0.375 = 0.000
0.000 + -2.875x + x2 = 0 + -0.375
-2.875x + x2 = 0 + -0.375

Combine like terms: 0 + -0.375 = -0.375
-2.875x + x2 = -0.375

The x term is -2.875x.  Take half its coefficient (-1.4375).
Square it (2.06640625) and add it to both sides.

Add '2.06640625' to each side of the equation.
-2.875x + 2.06640625 + x2 = -0.375 + 2.06640625

Reorder the terms:
2.06640625 + -2.875x + x2 = -0.375 + 2.06640625

Combine like terms: -0.375 + 2.06640625 = 1.69140625
2.06640625 + -2.875x + x2 = 1.69140625

Factor a perfect square on the left side:
(x + -1.4375)(x + -1.4375) = 1.69140625

Calculate the square root of the right side: 1.300540753

Break this problem into two subproblems by setting 
(x + -1.4375) equal to 1.300540753 and -1.300540753.

Subproblem 1

x + -1.4375 = 1.300540753 Simplifying x + -1.4375 = 1.300540753 Reorder the terms: -1.4375 + x = 1.300540753 Solving -1.4375 + x = 1.300540753 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '1.4375' to each side of the equation. -1.4375 + 1.4375 + x = 1.300540753 + 1.4375 Combine like terms: -1.4375 + 1.4375 = 0.0000 0.0000 + x = 1.300540753 + 1.4375 x = 1.300540753 + 1.4375 Combine like terms: 1.300540753 + 1.4375 = 2.738040753 x = 2.738040753 Simplifying x = 2.738040753

Subproblem 2

x + -1.4375 = -1.300540753 Simplifying x + -1.4375 = -1.300540753 Reorder the terms: -1.4375 + x = -1.300540753 Solving -1.4375 + x = -1.300540753 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '1.4375' to each side of the equation. -1.4375 + 1.4375 + x = -1.300540753 + 1.4375 Combine like terms: -1.4375 + 1.4375 = 0.0000 0.0000 + x = -1.300540753 + 1.4375 x = -1.300540753 + 1.4375 Combine like terms: -1.300540753 + 1.4375 = 0.136959247 x = 0.136959247 Simplifying x = 0.136959247

Solution

The solution to the problem is based on the solutions from the subproblems. x = {2.738040753, 0.136959247}

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