2500-2x^2-x=0

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Solution for 2500-2x^2-x=0 equation:


Simplifying
2500 + -2x2 + -1x = 0

Reorder the terms:
2500 + -1x + -2x2 = 0

Solving
2500 + -1x + -2x2 = 0

Solving for variable 'x'.

Begin completing the square.  Divide all terms by
-2 the coefficient of the squared term: 

Divide each side by '-2'.
-1250 + 0.5x + x2 = 0

Move the constant term to the right:

Add '1250' to each side of the equation.
-1250 + 0.5x + 1250 + x2 = 0 + 1250

Reorder the terms:
-1250 + 1250 + 0.5x + x2 = 0 + 1250

Combine like terms: -1250 + 1250 = 0
0 + 0.5x + x2 = 0 + 1250
0.5x + x2 = 0 + 1250

Combine like terms: 0 + 1250 = 1250
0.5x + x2 = 1250

The x term is 0.5x.  Take half its coefficient (0.25).
Square it (0.0625) and add it to both sides.

Add '0.0625' to each side of the equation.
0.5x + 0.0625 + x2 = 1250 + 0.0625

Reorder the terms:
0.0625 + 0.5x + x2 = 1250 + 0.0625

Combine like terms: 1250 + 0.0625 = 1250.0625
0.0625 + 0.5x + x2 = 1250.0625

Factor a perfect square on the left side:
(x + 0.25)(x + 0.25) = 1250.0625

Calculate the square root of the right side: 35.356222932

Break this problem into two subproblems by setting 
(x + 0.25) equal to 35.356222932 and -35.356222932.

Subproblem 1

x + 0.25 = 35.356222932 Simplifying x + 0.25 = 35.356222932 Reorder the terms: 0.25 + x = 35.356222932 Solving 0.25 + x = 35.356222932 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-0.25' to each side of the equation. 0.25 + -0.25 + x = 35.356222932 + -0.25 Combine like terms: 0.25 + -0.25 = 0.00 0.00 + x = 35.356222932 + -0.25 x = 35.356222932 + -0.25 Combine like terms: 35.356222932 + -0.25 = 35.106222932 x = 35.106222932 Simplifying x = 35.106222932

Subproblem 2

x + 0.25 = -35.356222932 Simplifying x + 0.25 = -35.356222932 Reorder the terms: 0.25 + x = -35.356222932 Solving 0.25 + x = -35.356222932 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-0.25' to each side of the equation. 0.25 + -0.25 + x = -35.356222932 + -0.25 Combine like terms: 0.25 + -0.25 = 0.00 0.00 + x = -35.356222932 + -0.25 x = -35.356222932 + -0.25 Combine like terms: -35.356222932 + -0.25 = -35.606222932 x = -35.606222932 Simplifying x = -35.606222932

Solution

The solution to the problem is based on the solutions from the subproblems. x = {35.106222932, -35.606222932}

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