.5x^2+14x-8500=0

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Solution for .5x^2+14x-8500=0 equation:


Simplifying
0.5x2 + 14x + -8500 = 0

Reorder the terms:
-8500 + 14x + 0.5x2 = 0

Solving
-8500 + 14x + 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'.
-17000 + 28x + x2 = 0

Move the constant term to the right:

Add '17000' to each side of the equation.
-17000 + 28x + 17000 + x2 = 0 + 17000

Reorder the terms:
-17000 + 17000 + 28x + x2 = 0 + 17000

Combine like terms: -17000 + 17000 = 0
0 + 28x + x2 = 0 + 17000
28x + x2 = 0 + 17000

Combine like terms: 0 + 17000 = 17000
28x + x2 = 17000

The x term is 28x.  Take half its coefficient (14).
Square it (196) and add it to both sides.

Add '196' to each side of the equation.
28x + 196 + x2 = 17000 + 196

Reorder the terms:
196 + 28x + x2 = 17000 + 196

Combine like terms: 17000 + 196 = 17196
196 + 28x + x2 = 17196

Factor a perfect square on the left side:
(x + 14)(x + 14) = 17196

Calculate the square root of the right side: 131.133519742

Break this problem into two subproblems by setting 
(x + 14) equal to 131.133519742 and -131.133519742.

Subproblem 1

x + 14 = 131.133519742 Simplifying x + 14 = 131.133519742 Reorder the terms: 14 + x = 131.133519742 Solving 14 + x = 131.133519742 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-14' to each side of the equation. 14 + -14 + x = 131.133519742 + -14 Combine like terms: 14 + -14 = 0 0 + x = 131.133519742 + -14 x = 131.133519742 + -14 Combine like terms: 131.133519742 + -14 = 117.133519742 x = 117.133519742 Simplifying x = 117.133519742

Subproblem 2

x + 14 = -131.133519742 Simplifying x + 14 = -131.133519742 Reorder the terms: 14 + x = -131.133519742 Solving 14 + x = -131.133519742 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-14' to each side of the equation. 14 + -14 + x = -131.133519742 + -14 Combine like terms: 14 + -14 = 0 0 + x = -131.133519742 + -14 x = -131.133519742 + -14 Combine like terms: -131.133519742 + -14 = -145.133519742 x = -145.133519742 Simplifying x = -145.133519742

Solution

The solution to the problem is based on the solutions from the subproblems. x = {117.133519742, -145.133519742}

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