5x^2+24x=384

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Solution for 5x^2+24x=384 equation:


Simplifying
5x2 + 24x = 384

Reorder the terms:
24x + 5x2 = 384

Solving
24x + 5x2 = 384

Solving for variable 'x'.

Reorder the terms:
-384 + 24x + 5x2 = 384 + -384

Combine like terms: 384 + -384 = 0
-384 + 24x + 5x2 = 0

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

Divide each side by '5'.
-76.8 + 4.8x + x2 = 0

Move the constant term to the right:

Add '76.8' to each side of the equation.
-76.8 + 4.8x + 76.8 + x2 = 0 + 76.8

Reorder the terms:
-76.8 + 76.8 + 4.8x + x2 = 0 + 76.8

Combine like terms: -76.8 + 76.8 = 0.0
0.0 + 4.8x + x2 = 0 + 76.8
4.8x + x2 = 0 + 76.8

Combine like terms: 0 + 76.8 = 76.8
4.8x + x2 = 76.8

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 = 76.8 + 5.76

Reorder the terms:
5.76 + 4.8x + x2 = 76.8 + 5.76

Combine like terms: 76.8 + 5.76 = 82.56
5.76 + 4.8x + x2 = 82.56

Factor a perfect square on the left side:
(x + 2.4)(x + 2.4) = 82.56

Calculate the square root of the right side: 9.086253353

Break this problem into two subproblems by setting 
(x + 2.4) equal to 9.086253353 and -9.086253353.

Subproblem 1

x + 2.4 = 9.086253353 Simplifying x + 2.4 = 9.086253353 Reorder the terms: 2.4 + x = 9.086253353 Solving 2.4 + x = 9.086253353 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 = 9.086253353 + -2.4 Combine like terms: 2.4 + -2.4 = 0.0 0.0 + x = 9.086253353 + -2.4 x = 9.086253353 + -2.4 Combine like terms: 9.086253353 + -2.4 = 6.686253353 x = 6.686253353 Simplifying x = 6.686253353

Subproblem 2

x + 2.4 = -9.086253353 Simplifying x + 2.4 = -9.086253353 Reorder the terms: 2.4 + x = -9.086253353 Solving 2.4 + x = -9.086253353 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 = -9.086253353 + -2.4 Combine like terms: 2.4 + -2.4 = 0.0 0.0 + x = -9.086253353 + -2.4 x = -9.086253353 + -2.4 Combine like terms: -9.086253353 + -2.4 = -11.486253353 x = -11.486253353 Simplifying x = -11.486253353

Solution

The solution to the problem is based on the solutions from the subproblems. x = {6.686253353, -11.486253353}

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