.5x^2-75x=-937.5

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Solution for .5x^2-75x=-937.5 equation:


Simplifying
0.5x2 + -75x = -937.5

Reorder the terms:
-75x + 0.5x2 = -937.5

Solving
-75x + 0.5x2 = -937.5

Solving for variable 'x'.

Reorder the terms:
937.5 + -75x + 0.5x2 = -937.5 + 937.5

Combine like terms: -937.5 + 937.5 = 0.0
937.5 + -75x + 0.5x2 = 0.0

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

Divide each side by '0.5'.
1875 + -150x + x2 = 0

Move the constant term to the right:

Add '-1875' to each side of the equation.
1875 + -150x + -1875 + x2 = 0 + -1875

Reorder the terms:
1875 + -1875 + -150x + x2 = 0 + -1875

Combine like terms: 1875 + -1875 = 0
0 + -150x + x2 = 0 + -1875
-150x + x2 = 0 + -1875

Combine like terms: 0 + -1875 = -1875
-150x + x2 = -1875

The x term is -150x.  Take half its coefficient (-75).
Square it (5625) and add it to both sides.

Add '5625' to each side of the equation.
-150x + 5625 + x2 = -1875 + 5625

Reorder the terms:
5625 + -150x + x2 = -1875 + 5625

Combine like terms: -1875 + 5625 = 3750
5625 + -150x + x2 = 3750

Factor a perfect square on the left side:
(x + -75)(x + -75) = 3750

Calculate the square root of the right side: 61.23724357

Break this problem into two subproblems by setting 
(x + -75) equal to 61.23724357 and -61.23724357.

Subproblem 1

x + -75 = 61.23724357 Simplifying x + -75 = 61.23724357 Reorder the terms: -75 + x = 61.23724357 Solving -75 + x = 61.23724357 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '75' to each side of the equation. -75 + 75 + x = 61.23724357 + 75 Combine like terms: -75 + 75 = 0 0 + x = 61.23724357 + 75 x = 61.23724357 + 75 Combine like terms: 61.23724357 + 75 = 136.23724357 x = 136.23724357 Simplifying x = 136.23724357

Subproblem 2

x + -75 = -61.23724357 Simplifying x + -75 = -61.23724357 Reorder the terms: -75 + x = -61.23724357 Solving -75 + x = -61.23724357 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '75' to each side of the equation. -75 + 75 + x = -61.23724357 + 75 Combine like terms: -75 + 75 = 0 0 + x = -61.23724357 + 75 x = -61.23724357 + 75 Combine like terms: -61.23724357 + 75 = 13.76275643 x = 13.76275643 Simplifying x = 13.76275643

Solution

The solution to the problem is based on the solutions from the subproblems. x = {136.23724357, 13.76275643}

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