-1.5x^2+2000x-600=0

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Solution for -1.5x^2+2000x-600=0 equation:


Simplifying
-1.5x2 + 2000x + -600 = 0

Reorder the terms:
-600 + 2000x + -1.5x2 = 0

Solving
-600 + 2000x + -1.5x2 = 0

Solving for variable 'x'.

Begin completing the square.  Divide all terms by
-1.5 the coefficient of the squared term: 

Divide each side by '-1.5'.
400 + -1333.333333x + x2 = 0

Move the constant term to the right:

Add '-400' to each side of the equation.
400 + -1333.333333x + -400 + x2 = 0 + -400

Reorder the terms:
400 + -400 + -1333.333333x + x2 = 0 + -400

Combine like terms: 400 + -400 = 0
0 + -1333.333333x + x2 = 0 + -400
-1333.333333x + x2 = 0 + -400

Combine like terms: 0 + -400 = -400
-1333.333333x + x2 = -400

The x term is -1333.333333x.  Take half its coefficient (-666.6666665).
Square it (444444.4442) and add it to both sides.

Add '444444.4442' to each side of the equation.
-1333.333333x + 444444.4442 + x2 = -400 + 444444.4442

Reorder the terms:
444444.4442 + -1333.333333x + x2 = -400 + 444444.4442

Combine like terms: -400 + 444444.4442 = 444044.4442
444444.4442 + -1333.333333x + x2 = 444044.4442

Factor a perfect square on the left side:
(x + -666.6666665)(x + -666.6666665) = 444044.4442

Calculate the square root of the right side: 666.366598953

Break this problem into two subproblems by setting 
(x + -666.6666665) equal to 666.366598953 and -666.366598953.

Subproblem 1

x + -666.6666665 = 666.366598953 Simplifying x + -666.6666665 = 666.366598953 Reorder the terms: -666.6666665 + x = 666.366598953 Solving -666.6666665 + x = 666.366598953 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '666.6666665' to each side of the equation. -666.6666665 + 666.6666665 + x = 666.366598953 + 666.6666665 Combine like terms: -666.6666665 + 666.6666665 = 0.0000000 0.0000000 + x = 666.366598953 + 666.6666665 x = 666.366598953 + 666.6666665 Combine like terms: 666.366598953 + 666.6666665 = 1333.033265453 x = 1333.033265453 Simplifying x = 1333.033265453

Subproblem 2

x + -666.6666665 = -666.366598953 Simplifying x + -666.6666665 = -666.366598953 Reorder the terms: -666.6666665 + x = -666.366598953 Solving -666.6666665 + x = -666.366598953 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '666.6666665' to each side of the equation. -666.6666665 + 666.6666665 + x = -666.366598953 + 666.6666665 Combine like terms: -666.6666665 + 666.6666665 = 0.0000000 0.0000000 + x = -666.366598953 + 666.6666665 x = -666.366598953 + 666.6666665 Combine like terms: -666.366598953 + 666.6666665 = 0.300067547 x = 0.300067547 Simplifying x = 0.300067547

Solution

The solution to the problem is based on the solutions from the subproblems. x = {1333.033265453, 0.300067547}

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