0=-x^2-2x+599

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Solution for 0=-x^2-2x+599 equation:


Simplifying
0 = -1x2 + -2x + 599

Reorder the terms:
0 = 599 + -2x + -1x2

Solving
0 = 599 + -2x + -1x2

Solving for variable 'x'.

Combine like terms: 0 + -599 = -599
-599 + 2x + x2 = 599 + -2x + -1x2 + -599 + 2x + x2

Reorder the terms:
-599 + 2x + x2 = 599 + -599 + -2x + 2x + -1x2 + x2

Combine like terms: 599 + -599 = 0
-599 + 2x + x2 = 0 + -2x + 2x + -1x2 + x2
-599 + 2x + x2 = -2x + 2x + -1x2 + x2

Combine like terms: -2x + 2x = 0
-599 + 2x + x2 = 0 + -1x2 + x2
-599 + 2x + x2 = -1x2 + x2

Combine like terms: -1x2 + x2 = 0
-599 + 2x + x2 = 0

Begin completing the square.

Move the constant term to the right:

Add '599' to each side of the equation.
-599 + 2x + 599 + x2 = 0 + 599

Reorder the terms:
-599 + 599 + 2x + x2 = 0 + 599

Combine like terms: -599 + 599 = 0
0 + 2x + x2 = 0 + 599
2x + x2 = 0 + 599

Combine like terms: 0 + 599 = 599
2x + x2 = 599

The x term is 2x.  Take half its coefficient (1).
Square it (1) and add it to both sides.

Add '1' to each side of the equation.
2x + 1 + x2 = 599 + 1

Reorder the terms:
1 + 2x + x2 = 599 + 1

Combine like terms: 599 + 1 = 600
1 + 2x + x2 = 600

Factor a perfect square on the left side:
(x + 1)(x + 1) = 600

Calculate the square root of the right side: 24.494897428

Break this problem into two subproblems by setting 
(x + 1) equal to 24.494897428 and -24.494897428.

Subproblem 1

x + 1 = 24.494897428 Simplifying x + 1 = 24.494897428 Reorder the terms: 1 + x = 24.494897428 Solving 1 + x = 24.494897428 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-1' to each side of the equation. 1 + -1 + x = 24.494897428 + -1 Combine like terms: 1 + -1 = 0 0 + x = 24.494897428 + -1 x = 24.494897428 + -1 Combine like terms: 24.494897428 + -1 = 23.494897428 x = 23.494897428 Simplifying x = 23.494897428

Subproblem 2

x + 1 = -24.494897428 Simplifying x + 1 = -24.494897428 Reorder the terms: 1 + x = -24.494897428 Solving 1 + x = -24.494897428 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-1' to each side of the equation. 1 + -1 + x = -24.494897428 + -1 Combine like terms: 1 + -1 = 0 0 + x = -24.494897428 + -1 x = -24.494897428 + -1 Combine like terms: -24.494897428 + -1 = -25.494897428 x = -25.494897428 Simplifying x = -25.494897428

Solution

The solution to the problem is based on the solutions from the subproblems. x = {23.494897428, -25.494897428}

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