5x^2-24x-4=0

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Solution for 5x^2-24x-4=0 equation:


Simplifying
5x2 + -24x + -4 = 0

Reorder the terms:
-4 + -24x + 5x2 = 0

Solving
-4 + -24x + 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'.
-0.8 + -4.8x + x2 = 0

Move the constant term to the right:

Add '0.8' to each side of the equation.
-0.8 + -4.8x + 0.8 + x2 = 0 + 0.8

Reorder the terms:
-0.8 + 0.8 + -4.8x + x2 = 0 + 0.8

Combine like terms: -0.8 + 0.8 = 0.0
0.0 + -4.8x + x2 = 0 + 0.8
-4.8x + x2 = 0 + 0.8

Combine like terms: 0 + 0.8 = 0.8
-4.8x + x2 = 0.8

The x term is -4.8x.  Take half its coefficient (-2.4).
Square it (5.76) and add it to both sides.

Add '5.76' to each side of the equation.
-4.8x + 5.76 + x2 = 0.8 + 5.76

Reorder the terms:
5.76 + -4.8x + x2 = 0.8 + 5.76

Combine like terms: 0.8 + 5.76 = 6.56
5.76 + -4.8x + x2 = 6.56

Factor a perfect square on the left side:
(x + -2.4)(x + -2.4) = 6.56

Calculate the square root of the right side: 2.561249695

Break this problem into two subproblems by setting 
(x + -2.4) equal to 2.561249695 and -2.561249695.

Subproblem 1

x + -2.4 = 2.561249695 Simplifying x + -2.4 = 2.561249695 Reorder the terms: -2.4 + x = 2.561249695 Solving -2.4 + x = 2.561249695 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '2.4' to each side of the equation. -2.4 + 2.4 + x = 2.561249695 + 2.4 Combine like terms: -2.4 + 2.4 = 0.0 0.0 + x = 2.561249695 + 2.4 x = 2.561249695 + 2.4 Combine like terms: 2.561249695 + 2.4 = 4.961249695 x = 4.961249695 Simplifying x = 4.961249695

Subproblem 2

x + -2.4 = -2.561249695 Simplifying x + -2.4 = -2.561249695 Reorder the terms: -2.4 + x = -2.561249695 Solving -2.4 + x = -2.561249695 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '2.4' to each side of the equation. -2.4 + 2.4 + x = -2.561249695 + 2.4 Combine like terms: -2.4 + 2.4 = 0.0 0.0 + x = -2.561249695 + 2.4 x = -2.561249695 + 2.4 Combine like terms: -2.561249695 + 2.4 = -0.161249695 x = -0.161249695 Simplifying x = -0.161249695

Solution

The solution to the problem is based on the solutions from the subproblems. x = {4.961249695, -0.161249695}

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