3x^2-24x-160=0

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Solution for 3x^2-24x-160=0 equation:


Simplifying
3x2 + -24x + -160 = 0

Reorder the terms:
-160 + -24x + 3x2 = 0

Solving
-160 + -24x + 3x2 = 0

Solving for variable 'x'.

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

Divide each side by '3'.
-53.33333333 + -8x + x2 = 0

Move the constant term to the right:

Add '53.33333333' to each side of the equation.
-53.33333333 + -8x + 53.33333333 + x2 = 0 + 53.33333333

Reorder the terms:
-53.33333333 + 53.33333333 + -8x + x2 = 0 + 53.33333333

Combine like terms: -53.33333333 + 53.33333333 = 0.00000000
0.00000000 + -8x + x2 = 0 + 53.33333333
-8x + x2 = 0 + 53.33333333

Combine like terms: 0 + 53.33333333 = 53.33333333
-8x + x2 = 53.33333333

The x term is -8x.  Take half its coefficient (-4).
Square it (16) and add it to both sides.

Add '16' to each side of the equation.
-8x + 16 + x2 = 53.33333333 + 16

Reorder the terms:
16 + -8x + x2 = 53.33333333 + 16

Combine like terms: 53.33333333 + 16 = 69.33333333
16 + -8x + x2 = 69.33333333

Factor a perfect square on the left side:
(x + -4)(x + -4) = 69.33333333

Calculate the square root of the right side: 8.326663998

Break this problem into two subproblems by setting 
(x + -4) equal to 8.326663998 and -8.326663998.

Subproblem 1

x + -4 = 8.326663998 Simplifying x + -4 = 8.326663998 Reorder the terms: -4 + x = 8.326663998 Solving -4 + x = 8.326663998 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '4' to each side of the equation. -4 + 4 + x = 8.326663998 + 4 Combine like terms: -4 + 4 = 0 0 + x = 8.326663998 + 4 x = 8.326663998 + 4 Combine like terms: 8.326663998 + 4 = 12.326663998 x = 12.326663998 Simplifying x = 12.326663998

Subproblem 2

x + -4 = -8.326663998 Simplifying x + -4 = -8.326663998 Reorder the terms: -4 + x = -8.326663998 Solving -4 + x = -8.326663998 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '4' to each side of the equation. -4 + 4 + x = -8.326663998 + 4 Combine like terms: -4 + 4 = 0 0 + x = -8.326663998 + 4 x = -8.326663998 + 4 Combine like terms: -8.326663998 + 4 = -4.326663998 x = -4.326663998 Simplifying x = -4.326663998

Solution

The solution to the problem is based on the solutions from the subproblems. x = {12.326663998, -4.326663998}

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