5x^2-43x-10=0

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Solution for 5x^2-43x-10=0 equation:


Simplifying
5x2 + -43x + -10 = 0

Reorder the terms:
-10 + -43x + 5x2 = 0

Solving
-10 + -43x + 5x2 = 0

Solving for variable 'x'.

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

Divide each side by '5'.
-2 + -8.6x + x2 = 0

Move the constant term to the right:

Add '2' to each side of the equation.
-2 + -8.6x + 2 + x2 = 0 + 2

Reorder the terms:
-2 + 2 + -8.6x + x2 = 0 + 2

Combine like terms: -2 + 2 = 0
0 + -8.6x + x2 = 0 + 2
-8.6x + x2 = 0 + 2

Combine like terms: 0 + 2 = 2
-8.6x + x2 = 2

The x term is -8.6x.  Take half its coefficient (-4.3).
Square it (18.49) and add it to both sides.

Add '18.49' to each side of the equation.
-8.6x + 18.49 + x2 = 2 + 18.49

Reorder the terms:
18.49 + -8.6x + x2 = 2 + 18.49

Combine like terms: 2 + 18.49 = 20.49
18.49 + -8.6x + x2 = 20.49

Factor a perfect square on the left side:
(x + -4.3)(x + -4.3) = 20.49

Calculate the square root of the right side: 4.526588119

Break this problem into two subproblems by setting 
(x + -4.3) equal to 4.526588119 and -4.526588119.

Subproblem 1

x + -4.3 = 4.526588119 Simplifying x + -4.3 = 4.526588119 Reorder the terms: -4.3 + x = 4.526588119 Solving -4.3 + x = 4.526588119 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '4.3' to each side of the equation. -4.3 + 4.3 + x = 4.526588119 + 4.3 Combine like terms: -4.3 + 4.3 = 0.0 0.0 + x = 4.526588119 + 4.3 x = 4.526588119 + 4.3 Combine like terms: 4.526588119 + 4.3 = 8.826588119 x = 8.826588119 Simplifying x = 8.826588119

Subproblem 2

x + -4.3 = -4.526588119 Simplifying x + -4.3 = -4.526588119 Reorder the terms: -4.3 + x = -4.526588119 Solving -4.3 + x = -4.526588119 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '4.3' to each side of the equation. -4.3 + 4.3 + x = -4.526588119 + 4.3 Combine like terms: -4.3 + 4.3 = 0.0 0.0 + x = -4.526588119 + 4.3 x = -4.526588119 + 4.3 Combine like terms: -4.526588119 + 4.3 = -0.226588119 x = -0.226588119 Simplifying x = -0.226588119

Solution

The solution to the problem is based on the solutions from the subproblems. x = {8.826588119, -0.226588119}

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