5x^2-96x-2000=0

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Solution for 5x^2-96x-2000=0 equation:


Simplifying
5x2 + -96x + -2000 = 0

Reorder the terms:
-2000 + -96x + 5x2 = 0

Solving
-2000 + -96x + 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'.
-400 + -19.2x + x2 = 0

Move the constant term to the right:

Add '400' to each side of the equation.
-400 + -19.2x + 400 + x2 = 0 + 400

Reorder the terms:
-400 + 400 + -19.2x + x2 = 0 + 400

Combine like terms: -400 + 400 = 0
0 + -19.2x + x2 = 0 + 400
-19.2x + x2 = 0 + 400

Combine like terms: 0 + 400 = 400
-19.2x + x2 = 400

The x term is -19.2x.  Take half its coefficient (-9.6).
Square it (92.16) and add it to both sides.

Add '92.16' to each side of the equation.
-19.2x + 92.16 + x2 = 400 + 92.16

Reorder the terms:
92.16 + -19.2x + x2 = 400 + 92.16

Combine like terms: 400 + 92.16 = 492.16
92.16 + -19.2x + x2 = 492.16

Factor a perfect square on the left side:
(x + -9.6)(x + -9.6) = 492.16

Calculate the square root of the right side: 22.184679398

Break this problem into two subproblems by setting 
(x + -9.6) equal to 22.184679398 and -22.184679398.

Subproblem 1

x + -9.6 = 22.184679398 Simplifying x + -9.6 = 22.184679398 Reorder the terms: -9.6 + x = 22.184679398 Solving -9.6 + x = 22.184679398 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '9.6' to each side of the equation. -9.6 + 9.6 + x = 22.184679398 + 9.6 Combine like terms: -9.6 + 9.6 = 0.0 0.0 + x = 22.184679398 + 9.6 x = 22.184679398 + 9.6 Combine like terms: 22.184679398 + 9.6 = 31.784679398 x = 31.784679398 Simplifying x = 31.784679398

Subproblem 2

x + -9.6 = -22.184679398 Simplifying x + -9.6 = -22.184679398 Reorder the terms: -9.6 + x = -22.184679398 Solving -9.6 + x = -22.184679398 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '9.6' to each side of the equation. -9.6 + 9.6 + x = -22.184679398 + 9.6 Combine like terms: -9.6 + 9.6 = 0.0 0.0 + x = -22.184679398 + 9.6 x = -22.184679398 + 9.6 Combine like terms: -22.184679398 + 9.6 = -12.584679398 x = -12.584679398 Simplifying x = -12.584679398

Solution

The solution to the problem is based on the solutions from the subproblems. x = {31.784679398, -12.584679398}

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