150x-3x^2=1000

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Solution for 150x-3x^2=1000 equation:


Simplifying
150x + -3x2 = 1000

Solving
150x + -3x2 = 1000

Solving for variable 'x'.

Reorder the terms:
-1000 + 150x + -3x2 = 1000 + -1000

Combine like terms: 1000 + -1000 = 0
-1000 + 150x + -3x2 = 0

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

Divide each side by '-3'.
333.3333333 + -50x + x2 = 0

Move the constant term to the right:

Add '-333.3333333' to each side of the equation.
333.3333333 + -50x + -333.3333333 + x2 = 0 + -333.3333333

Reorder the terms:
333.3333333 + -333.3333333 + -50x + x2 = 0 + -333.3333333

Combine like terms: 333.3333333 + -333.3333333 = 0.0000000
0.0000000 + -50x + x2 = 0 + -333.3333333
-50x + x2 = 0 + -333.3333333

Combine like terms: 0 + -333.3333333 = -333.3333333
-50x + x2 = -333.3333333

The x term is -50x.  Take half its coefficient (-25).
Square it (625) and add it to both sides.

Add '625' to each side of the equation.
-50x + 625 + x2 = -333.3333333 + 625

Reorder the terms:
625 + -50x + x2 = -333.3333333 + 625

Combine like terms: -333.3333333 + 625 = 291.6666667
625 + -50x + x2 = 291.6666667

Factor a perfect square on the left side:
(x + -25)(x + -25) = 291.6666667

Calculate the square root of the right side: 17.078251278

Break this problem into two subproblems by setting 
(x + -25) equal to 17.078251278 and -17.078251278.

Subproblem 1

x + -25 = 17.078251278 Simplifying x + -25 = 17.078251278 Reorder the terms: -25 + x = 17.078251278 Solving -25 + x = 17.078251278 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '25' to each side of the equation. -25 + 25 + x = 17.078251278 + 25 Combine like terms: -25 + 25 = 0 0 + x = 17.078251278 + 25 x = 17.078251278 + 25 Combine like terms: 17.078251278 + 25 = 42.078251278 x = 42.078251278 Simplifying x = 42.078251278

Subproblem 2

x + -25 = -17.078251278 Simplifying x + -25 = -17.078251278 Reorder the terms: -25 + x = -17.078251278 Solving -25 + x = -17.078251278 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '25' to each side of the equation. -25 + 25 + x = -17.078251278 + 25 Combine like terms: -25 + 25 = 0 0 + x = -17.078251278 + 25 x = -17.078251278 + 25 Combine like terms: -17.078251278 + 25 = 7.921748722 x = 7.921748722 Simplifying x = 7.921748722

Solution

The solution to the problem is based on the solutions from the subproblems. x = {42.078251278, 7.921748722}

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