3x^2+12000x-2000=0

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Solution for 3x^2+12000x-2000=0 equation:


Simplifying
3x2 + 12000x + -2000 = 0

Reorder the terms:
-2000 + 12000x + 3x2 = 0

Solving
-2000 + 12000x + 3x2 = 0

Solving for variable 'x'.

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

Divide each side by '3'.
-666.6666667 + 4000x + x2 = 0

Move the constant term to the right:

Add '666.6666667' to each side of the equation.
-666.6666667 + 4000x + 666.6666667 + x2 = 0 + 666.6666667

Reorder the terms:
-666.6666667 + 666.6666667 + 4000x + x2 = 0 + 666.6666667

Combine like terms: -666.6666667 + 666.6666667 = 0.0000000
0.0000000 + 4000x + x2 = 0 + 666.6666667
4000x + x2 = 0 + 666.6666667

Combine like terms: 0 + 666.6666667 = 666.6666667
4000x + x2 = 666.6666667

The x term is 4000x.  Take half its coefficient (2000).
Square it (4000000) and add it to both sides.

Add '4000000' to each side of the equation.
4000x + 4000000 + x2 = 666.6666667 + 4000000

Reorder the terms:
4000000 + 4000x + x2 = 666.6666667 + 4000000

Combine like terms: 666.6666667 + 4000000 = 4000666.6666667
4000000 + 4000x + x2 = 4000666.6666667

Factor a perfect square on the left side:
(x + 2000)(x + 2000) = 4000666.6666667

Calculate the square root of the right side: 2000.166659723

Break this problem into two subproblems by setting 
(x + 2000) equal to 2000.166659723 and -2000.166659723.

Subproblem 1

x + 2000 = 2000.166659723 Simplifying x + 2000 = 2000.166659723 Reorder the terms: 2000 + x = 2000.166659723 Solving 2000 + x = 2000.166659723 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-2000' to each side of the equation. 2000 + -2000 + x = 2000.166659723 + -2000 Combine like terms: 2000 + -2000 = 0 0 + x = 2000.166659723 + -2000 x = 2000.166659723 + -2000 Combine like terms: 2000.166659723 + -2000 = 0.166659723 x = 0.166659723 Simplifying x = 0.166659723

Subproblem 2

x + 2000 = -2000.166659723 Simplifying x + 2000 = -2000.166659723 Reorder the terms: 2000 + x = -2000.166659723 Solving 2000 + x = -2000.166659723 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-2000' to each side of the equation. 2000 + -2000 + x = -2000.166659723 + -2000 Combine like terms: 2000 + -2000 = 0 0 + x = -2000.166659723 + -2000 x = -2000.166659723 + -2000 Combine like terms: -2000.166659723 + -2000 = -4000.166659723 x = -4000.166659723 Simplifying x = -4000.166659723

Solution

The solution to the problem is based on the solutions from the subproblems. x = {0.166659723, -4000.166659723}

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