x(5x-23)=26

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Solution for x(5x-23)=26 equation:


Simplifying
x(5x + -23) = 26

Reorder the terms:
x(-23 + 5x) = 26
(-23 * x + 5x * x) = 26
(-23x + 5x2) = 26

Solving
-23x + 5x2 = 26

Solving for variable 'x'.

Reorder the terms:
-26 + -23x + 5x2 = 26 + -26

Combine like terms: 26 + -26 = 0
-26 + -23x + 5x2 = 0

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

Divide each side by '5'.
-5.2 + -4.6x + x2 = 0

Move the constant term to the right:

Add '5.2' to each side of the equation.
-5.2 + -4.6x + 5.2 + x2 = 0 + 5.2

Reorder the terms:
-5.2 + 5.2 + -4.6x + x2 = 0 + 5.2

Combine like terms: -5.2 + 5.2 = 0.0
0.0 + -4.6x + x2 = 0 + 5.2
-4.6x + x2 = 0 + 5.2

Combine like terms: 0 + 5.2 = 5.2
-4.6x + x2 = 5.2

The x term is -4.6x.  Take half its coefficient (-2.3).
Square it (5.29) and add it to both sides.

Add '5.29' to each side of the equation.
-4.6x + 5.29 + x2 = 5.2 + 5.29

Reorder the terms:
5.29 + -4.6x + x2 = 5.2 + 5.29

Combine like terms: 5.2 + 5.29 = 10.49
5.29 + -4.6x + x2 = 10.49

Factor a perfect square on the left side:
(x + -2.3)(x + -2.3) = 10.49

Calculate the square root of the right side: 3.238826948

Break this problem into two subproblems by setting 
(x + -2.3) equal to 3.238826948 and -3.238826948.

Subproblem 1

x + -2.3 = 3.238826948 Simplifying x + -2.3 = 3.238826948 Reorder the terms: -2.3 + x = 3.238826948 Solving -2.3 + x = 3.238826948 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '2.3' to each side of the equation. -2.3 + 2.3 + x = 3.238826948 + 2.3 Combine like terms: -2.3 + 2.3 = 0.0 0.0 + x = 3.238826948 + 2.3 x = 3.238826948 + 2.3 Combine like terms: 3.238826948 + 2.3 = 5.538826948 x = 5.538826948 Simplifying x = 5.538826948

Subproblem 2

x + -2.3 = -3.238826948 Simplifying x + -2.3 = -3.238826948 Reorder the terms: -2.3 + x = -3.238826948 Solving -2.3 + x = -3.238826948 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '2.3' to each side of the equation. -2.3 + 2.3 + x = -3.238826948 + 2.3 Combine like terms: -2.3 + 2.3 = 0.0 0.0 + x = -3.238826948 + 2.3 x = -3.238826948 + 2.3 Combine like terms: -3.238826948 + 2.3 = -0.938826948 x = -0.938826948 Simplifying x = -0.938826948

Solution

The solution to the problem is based on the solutions from the subproblems. x = {5.538826948, -0.938826948}

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