4x^2-1200x-1=0

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Solution for 4x^2-1200x-1=0 equation:


Simplifying
4x2 + -1200x + -1 = 0

Reorder the terms:
-1 + -1200x + 4x2 = 0

Solving
-1 + -1200x + 4x2 = 0

Solving for variable 'x'.

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

Divide each side by '4'.
-0.25 + -300x + x2 = 0

Move the constant term to the right:

Add '0.25' to each side of the equation.
-0.25 + -300x + 0.25 + x2 = 0 + 0.25

Reorder the terms:
-0.25 + 0.25 + -300x + x2 = 0 + 0.25

Combine like terms: -0.25 + 0.25 = 0.00
0.00 + -300x + x2 = 0 + 0.25
-300x + x2 = 0 + 0.25

Combine like terms: 0 + 0.25 = 0.25
-300x + x2 = 0.25

The x term is -300x.  Take half its coefficient (-150).
Square it (22500) and add it to both sides.

Add '22500' to each side of the equation.
-300x + 22500 + x2 = 0.25 + 22500

Reorder the terms:
22500 + -300x + x2 = 0.25 + 22500

Combine like terms: 0.25 + 22500 = 22500.25
22500 + -300x + x2 = 22500.25

Factor a perfect square on the left side:
(x + -150)(x + -150) = 22500.25

Calculate the square root of the right side: 150.000833331

Break this problem into two subproblems by setting 
(x + -150) equal to 150.000833331 and -150.000833331.

Subproblem 1

x + -150 = 150.000833331 Simplifying x + -150 = 150.000833331 Reorder the terms: -150 + x = 150.000833331 Solving -150 + x = 150.000833331 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '150' to each side of the equation. -150 + 150 + x = 150.000833331 + 150 Combine like terms: -150 + 150 = 0 0 + x = 150.000833331 + 150 x = 150.000833331 + 150 Combine like terms: 150.000833331 + 150 = 300.000833331 x = 300.000833331 Simplifying x = 300.000833331

Subproblem 2

x + -150 = -150.000833331 Simplifying x + -150 = -150.000833331 Reorder the terms: -150 + x = -150.000833331 Solving -150 + x = -150.000833331 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '150' to each side of the equation. -150 + 150 + x = -150.000833331 + 150 Combine like terms: -150 + 150 = 0 0 + x = -150.000833331 + 150 x = -150.000833331 + 150 Combine like terms: -150.000833331 + 150 = -0.000833331 x = -0.000833331 Simplifying x = -0.000833331

Solution

The solution to the problem is based on the solutions from the subproblems. x = {300.000833331, -0.000833331}

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