0.5x^2+40x-6000=0

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Solution for 0.5x^2+40x-6000=0 equation:


Simplifying
0.5x2 + 40x + -6000 = 0

Reorder the terms:
-6000 + 40x + 0.5x2 = 0

Solving
-6000 + 40x + 0.5x2 = 0

Solving for variable 'x'.

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

Divide each side by '0.5'.
-12000 + 80x + x2 = 0

Move the constant term to the right:

Add '12000' to each side of the equation.
-12000 + 80x + 12000 + x2 = 0 + 12000

Reorder the terms:
-12000 + 12000 + 80x + x2 = 0 + 12000

Combine like terms: -12000 + 12000 = 0
0 + 80x + x2 = 0 + 12000
80x + x2 = 0 + 12000

Combine like terms: 0 + 12000 = 12000
80x + x2 = 12000

The x term is 80x.  Take half its coefficient (40).
Square it (1600) and add it to both sides.

Add '1600' to each side of the equation.
80x + 1600 + x2 = 12000 + 1600

Reorder the terms:
1600 + 80x + x2 = 12000 + 1600

Combine like terms: 12000 + 1600 = 13600
1600 + 80x + x2 = 13600

Factor a perfect square on the left side:
(x + 40)(x + 40) = 13600

Calculate the square root of the right side: 116.619037897

Break this problem into two subproblems by setting 
(x + 40) equal to 116.619037897 and -116.619037897.

Subproblem 1

x + 40 = 116.619037897 Simplifying x + 40 = 116.619037897 Reorder the terms: 40 + x = 116.619037897 Solving 40 + x = 116.619037897 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-40' to each side of the equation. 40 + -40 + x = 116.619037897 + -40 Combine like terms: 40 + -40 = 0 0 + x = 116.619037897 + -40 x = 116.619037897 + -40 Combine like terms: 116.619037897 + -40 = 76.619037897 x = 76.619037897 Simplifying x = 76.619037897

Subproblem 2

x + 40 = -116.619037897 Simplifying x + 40 = -116.619037897 Reorder the terms: 40 + x = -116.619037897 Solving 40 + x = -116.619037897 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-40' to each side of the equation. 40 + -40 + x = -116.619037897 + -40 Combine like terms: 40 + -40 = 0 0 + x = -116.619037897 + -40 x = -116.619037897 + -40 Combine like terms: -116.619037897 + -40 = -156.619037897 x = -156.619037897 Simplifying x = -156.619037897

Solution

The solution to the problem is based on the solutions from the subproblems. x = {76.619037897, -156.619037897}

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