1000+3x=x^2

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Solution for 1000+3x=x^2 equation:


Simplifying
1000 + 3x = x2

Solving
1000 + 3x = x2

Solving for variable 'x'.

Combine like terms: x2 + -1x2 = 0
1000 + 3x + -1x2 = 0

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

Divide each side by '-1'.
-1000 + -3x + x2 = 0

Move the constant term to the right:

Add '1000' to each side of the equation.
-1000 + -3x + 1000 + x2 = 0 + 1000

Reorder the terms:
-1000 + 1000 + -3x + x2 = 0 + 1000

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

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

The x term is -3x.  Take half its coefficient (-1.5).
Square it (2.25) and add it to both sides.

Add '2.25' to each side of the equation.
-3x + 2.25 + x2 = 1000 + 2.25

Reorder the terms:
2.25 + -3x + x2 = 1000 + 2.25

Combine like terms: 1000 + 2.25 = 1002.25
2.25 + -3x + x2 = 1002.25

Factor a perfect square on the left side:
(x + -1.5)(x + -1.5) = 1002.25

Calculate the square root of the right side: 31.658332237

Break this problem into two subproblems by setting 
(x + -1.5) equal to 31.658332237 and -31.658332237.

Subproblem 1

x + -1.5 = 31.658332237 Simplifying x + -1.5 = 31.658332237 Reorder the terms: -1.5 + x = 31.658332237 Solving -1.5 + x = 31.658332237 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '1.5' to each side of the equation. -1.5 + 1.5 + x = 31.658332237 + 1.5 Combine like terms: -1.5 + 1.5 = 0.0 0.0 + x = 31.658332237 + 1.5 x = 31.658332237 + 1.5 Combine like terms: 31.658332237 + 1.5 = 33.158332237 x = 33.158332237 Simplifying x = 33.158332237

Subproblem 2

x + -1.5 = -31.658332237 Simplifying x + -1.5 = -31.658332237 Reorder the terms: -1.5 + x = -31.658332237 Solving -1.5 + x = -31.658332237 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '1.5' to each side of the equation. -1.5 + 1.5 + x = -31.658332237 + 1.5 Combine like terms: -1.5 + 1.5 = 0.0 0.0 + x = -31.658332237 + 1.5 x = -31.658332237 + 1.5 Combine like terms: -31.658332237 + 1.5 = -30.158332237 x = -30.158332237 Simplifying x = -30.158332237

Solution

The solution to the problem is based on the solutions from the subproblems. x = {33.158332237, -30.158332237}

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