-.02x^2+150x+70000=0

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Solution for -.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 = 17562500
14062500 + -7500x + x2 = 17562500

Factor a perfect square on the left side:
(x + -3750)(x + -3750) = 17562500

Calculate the square root of the right side: 4190.76365356

Break this problem into two subproblems by setting 
(x + -3750) equal to 4190.76365356 and -4190.76365356.

Subproblem 1

x + -3750 = 4190.76365356 Simplifying x + -3750 = 4190.76365356 Reorder the terms: -3750 + x = 4190.76365356 Solving -3750 + x = 4190.76365356 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 = 4190.76365356 + 3750 Combine like terms: -3750 + 3750 = 0 0 + x = 4190.76365356 + 3750 x = 4190.76365356 + 3750 Combine like terms: 4190.76365356 + 3750 = 7940.76365356 x = 7940.76365356 Simplifying x = 7940.76365356

Subproblem 2

x + -3750 = -4190.76365356 Simplifying x + -3750 = -4190.76365356 Reorder the terms: -3750 + x = -4190.76365356 Solving -3750 + x = -4190.76365356 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 = -4190.76365356 + 3750 Combine like terms: -3750 + 3750 = 0 0 + x = -4190.76365356 + 3750 x = -4190.76365356 + 3750 Combine like terms: -4190.76365356 + 3750 = -440.76365356 x = -440.76365356 Simplifying x = -440.76365356

Solution

The solution to the problem is based on the solutions from the subproblems. x = {7940.76365356, -440.76365356}

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