.5x^2+300x-4600=0

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Solution for .5x^2+300x-4600=0 equation:


Simplifying
0.5x2 + 300x + -4600 = 0

Reorder the terms:
-4600 + 300x + 0.5x2 = 0

Solving
-4600 + 300x + 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'.
-9200 + 600x + x2 = 0

Move the constant term to the right:

Add '9200' to each side of the equation.
-9200 + 600x + 9200 + x2 = 0 + 9200

Reorder the terms:
-9200 + 9200 + 600x + x2 = 0 + 9200

Combine like terms: -9200 + 9200 = 0
0 + 600x + x2 = 0 + 9200
600x + x2 = 0 + 9200

Combine like terms: 0 + 9200 = 9200
600x + x2 = 9200

The x term is 600x.  Take half its coefficient (300).
Square it (90000) and add it to both sides.

Add '90000' to each side of the equation.
600x + 90000 + x2 = 9200 + 90000

Reorder the terms:
90000 + 600x + x2 = 9200 + 90000

Combine like terms: 9200 + 90000 = 99200
90000 + 600x + x2 = 99200

Factor a perfect square on the left side:
(x + 300)(x + 300) = 99200

Calculate the square root of the right side: 314.96031496

Break this problem into two subproblems by setting 
(x + 300) equal to 314.96031496 and -314.96031496.

Subproblem 1

x + 300 = 314.96031496 Simplifying x + 300 = 314.96031496 Reorder the terms: 300 + x = 314.96031496 Solving 300 + x = 314.96031496 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-300' to each side of the equation. 300 + -300 + x = 314.96031496 + -300 Combine like terms: 300 + -300 = 0 0 + x = 314.96031496 + -300 x = 314.96031496 + -300 Combine like terms: 314.96031496 + -300 = 14.96031496 x = 14.96031496 Simplifying x = 14.96031496

Subproblem 2

x + 300 = -314.96031496 Simplifying x + 300 = -314.96031496 Reorder the terms: 300 + x = -314.96031496 Solving 300 + x = -314.96031496 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-300' to each side of the equation. 300 + -300 + x = -314.96031496 + -300 Combine like terms: 300 + -300 = 0 0 + x = -314.96031496 + -300 x = -314.96031496 + -300 Combine like terms: -314.96031496 + -300 = -614.96031496 x = -614.96031496 Simplifying x = -614.96031496

Solution

The solution to the problem is based on the solutions from the subproblems. x = {14.96031496, -614.96031496}

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