-0.02x^2+150x-70000=0

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Solution for -0.02x^2+150x-70000=0 equation:


Simplifying
-0.02x2 + 150x + -70000 = 0

Reorder the terms:
-70000 + 150x + -0.02x2 = 0

Solving
-70000 + 150x + -0.02x2 = 0

Solving for variable 'x'.

Begin completing the square.  Divide all terms by
-0.02 the coefficient of the squared term: 

Divide each side by '-0.02'.
3500000 + -7500x + x2 = 0

Move the constant term to the right:

Add '-3500000' to each side of the equation.
3500000 + -7500x + -3500000 + x2 = 0 + -3500000

Reorder the terms:
3500000 + -3500000 + -7500x + x2 = 0 + -3500000

Combine like terms: 3500000 + -3500000 = 0
0 + -7500x + x2 = 0 + -3500000
-7500x + x2 = 0 + -3500000

Combine like terms: 0 + -3500000 = -3500000
-7500x + x2 = -3500000

The x term is -7500x.  Take half its coefficient (-3750).
Square it (14062500) and add it to both sides.

Add '14062500' to each side of the equation.
-7500x + 14062500 + x2 = -3500000 + 14062500

Reorder the terms:
14062500 + -7500x + x2 = -3500000 + 14062500

Combine like terms: -3500000 + 14062500 = 10562500
14062500 + -7500x + x2 = 10562500

Factor a perfect square on the left side:
(x + -3750)(x + -3750) = 10562500

Calculate the square root of the right side: 3250

Break this problem into two subproblems by setting 
(x + -3750) equal to 3250 and -3250.

Subproblem 1

x + -3750 = 3250 Simplifying x + -3750 = 3250 Reorder the terms: -3750 + x = 3250 Solving -3750 + x = 3250 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '3750' to each side of the equation. -3750 + 3750 + x = 3250 + 3750 Combine like terms: -3750 + 3750 = 0 0 + x = 3250 + 3750 x = 3250 + 3750 Combine like terms: 3250 + 3750 = 7000 x = 7000 Simplifying x = 7000

Subproblem 2

x + -3750 = -3250 Simplifying x + -3750 = -3250 Reorder the terms: -3750 + x = -3250 Solving -3750 + x = -3250 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '3750' to each side of the equation. -3750 + 3750 + x = -3250 + 3750 Combine like terms: -3750 + 3750 = 0 0 + x = -3250 + 3750 x = -3250 + 3750 Combine like terms: -3250 + 3750 = 500 x = 500 Simplifying x = 500

Solution

The solution to the problem is based on the solutions from the subproblems. x = {7000, 500}

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