5x^2-48x-180=0

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Solution for 5x^2-48x-180=0 equation:


Simplifying
5x2 + -48x + -180 = 0

Reorder the terms:
-180 + -48x + 5x2 = 0

Solving
-180 + -48x + 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'.
-36 + -9.6x + x2 = 0

Move the constant term to the right:

Add '36' to each side of the equation.
-36 + -9.6x + 36 + x2 = 0 + 36

Reorder the terms:
-36 + 36 + -9.6x + x2 = 0 + 36

Combine like terms: -36 + 36 = 0
0 + -9.6x + x2 = 0 + 36
-9.6x + x2 = 0 + 36

Combine like terms: 0 + 36 = 36
-9.6x + x2 = 36

The x term is -9.6x.  Take half its coefficient (-4.8).
Square it (23.04) and add it to both sides.

Add '23.04' to each side of the equation.
-9.6x + 23.04 + x2 = 36 + 23.04

Reorder the terms:
23.04 + -9.6x + x2 = 36 + 23.04

Combine like terms: 36 + 23.04 = 59.04
23.04 + -9.6x + x2 = 59.04

Factor a perfect square on the left side:
(x + -4.8)(x + -4.8) = 59.04

Calculate the square root of the right side: 7.683749085

Break this problem into two subproblems by setting 
(x + -4.8) equal to 7.683749085 and -7.683749085.

Subproblem 1

x + -4.8 = 7.683749085 Simplifying x + -4.8 = 7.683749085 Reorder the terms: -4.8 + x = 7.683749085 Solving -4.8 + x = 7.683749085 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '4.8' to each side of the equation. -4.8 + 4.8 + x = 7.683749085 + 4.8 Combine like terms: -4.8 + 4.8 = 0.0 0.0 + x = 7.683749085 + 4.8 x = 7.683749085 + 4.8 Combine like terms: 7.683749085 + 4.8 = 12.483749085 x = 12.483749085 Simplifying x = 12.483749085

Subproblem 2

x + -4.8 = -7.683749085 Simplifying x + -4.8 = -7.683749085 Reorder the terms: -4.8 + x = -7.683749085 Solving -4.8 + x = -7.683749085 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '4.8' to each side of the equation. -4.8 + 4.8 + x = -7.683749085 + 4.8 Combine like terms: -4.8 + 4.8 = 0.0 0.0 + x = -7.683749085 + 4.8 x = -7.683749085 + 4.8 Combine like terms: -7.683749085 + 4.8 = -2.883749085 x = -2.883749085 Simplifying x = -2.883749085

Solution

The solution to the problem is based on the solutions from the subproblems. x = {12.483749085, -2.883749085}

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