150=x^2-300x

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Solution for 150=x^2-300x equation:


Simplifying
150 = x2 + -300x

Reorder the terms:
150 = -300x + x2

Solving
150 = -300x + x2

Solving for variable 'x'.

Reorder the terms:
150 + 300x + -1x2 = -300x + 300x + x2 + -1x2

Combine like terms: -300x + 300x = 0
150 + 300x + -1x2 = 0 + x2 + -1x2
150 + 300x + -1x2 = x2 + -1x2

Combine like terms: x2 + -1x2 = 0
150 + 300x + -1x2 = 0

Begin completing the square.  Divide all terms by
-1 the coefficient of the squared term: 

Divide each side by '-1'.
-150 + -300x + x2 = 0

Move the constant term to the right:

Add '150' to each side of the equation.
-150 + -300x + 150 + x2 = 0 + 150

Reorder the terms:
-150 + 150 + -300x + x2 = 0 + 150

Combine like terms: -150 + 150 = 0
0 + -300x + x2 = 0 + 150
-300x + x2 = 0 + 150

Combine like terms: 0 + 150 = 150
-300x + x2 = 150

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 = 150 + 22500

Reorder the terms:
22500 + -300x + x2 = 150 + 22500

Combine like terms: 150 + 22500 = 22650
22500 + -300x + x2 = 22650

Factor a perfect square on the left side:
(x + -150)(x + -150) = 22650

Calculate the square root of the right side: 150.499169433

Break this problem into two subproblems by setting 
(x + -150) equal to 150.499169433 and -150.499169433.

Subproblem 1

x + -150 = 150.499169433 Simplifying x + -150 = 150.499169433 Reorder the terms: -150 + x = 150.499169433 Solving -150 + x = 150.499169433 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 = 150.499169433 + 150 Combine like terms: -150 + 150 = 0 0 + x = 150.499169433 + 150 x = 150.499169433 + 150 Combine like terms: 150.499169433 + 150 = 300.499169433 x = 300.499169433 Simplifying x = 300.499169433

Subproblem 2

x + -150 = -150.499169433 Simplifying x + -150 = -150.499169433 Reorder the terms: -150 + x = -150.499169433 Solving -150 + x = -150.499169433 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 = -150.499169433 + 150 Combine like terms: -150 + 150 = 0 0 + x = -150.499169433 + 150 x = -150.499169433 + 150 Combine like terms: -150.499169433 + 150 = -0.499169433 x = -0.499169433 Simplifying x = -0.499169433

Solution

The solution to the problem is based on the solutions from the subproblems. x = {300.499169433, -0.499169433}

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