0=x^2+10x-512

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Solution for 0=x^2+10x-512 equation:


Simplifying
0 = x2 + 10x + -512

Reorder the terms:
0 = -512 + 10x + x2

Solving
0 = -512 + 10x + x2

Solving for variable 'x'.

Combine like terms: 0 + 512 = 512
512 + -10x + -1x2 = -512 + 10x + x2 + 512 + -10x + -1x2

Reorder the terms:
512 + -10x + -1x2 = -512 + 512 + 10x + -10x + x2 + -1x2

Combine like terms: -512 + 512 = 0
512 + -10x + -1x2 = 0 + 10x + -10x + x2 + -1x2
512 + -10x + -1x2 = 10x + -10x + x2 + -1x2

Combine like terms: 10x + -10x = 0
512 + -10x + -1x2 = 0 + x2 + -1x2
512 + -10x + -1x2 = x2 + -1x2

Combine like terms: x2 + -1x2 = 0
512 + -10x + -1x2 = 0

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

Divide each side by '-1'.
-512 + 10x + x2 = 0

Move the constant term to the right:

Add '512' to each side of the equation.
-512 + 10x + 512 + x2 = 0 + 512

Reorder the terms:
-512 + 512 + 10x + x2 = 0 + 512

Combine like terms: -512 + 512 = 0
0 + 10x + x2 = 0 + 512
10x + x2 = 0 + 512

Combine like terms: 0 + 512 = 512
10x + x2 = 512

The x term is 10x.  Take half its coefficient (5).
Square it (25) and add it to both sides.

Add '25' to each side of the equation.
10x + 25 + x2 = 512 + 25

Reorder the terms:
25 + 10x + x2 = 512 + 25

Combine like terms: 512 + 25 = 537
25 + 10x + x2 = 537

Factor a perfect square on the left side:
(x + 5)(x + 5) = 537

Calculate the square root of the right side: 23.173260453

Break this problem into two subproblems by setting 
(x + 5) equal to 23.173260453 and -23.173260453.

Subproblem 1

x + 5 = 23.173260453 Simplifying x + 5 = 23.173260453 Reorder the terms: 5 + x = 23.173260453 Solving 5 + x = 23.173260453 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-5' to each side of the equation. 5 + -5 + x = 23.173260453 + -5 Combine like terms: 5 + -5 = 0 0 + x = 23.173260453 + -5 x = 23.173260453 + -5 Combine like terms: 23.173260453 + -5 = 18.173260453 x = 18.173260453 Simplifying x = 18.173260453

Subproblem 2

x + 5 = -23.173260453 Simplifying x + 5 = -23.173260453 Reorder the terms: 5 + x = -23.173260453 Solving 5 + x = -23.173260453 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-5' to each side of the equation. 5 + -5 + x = -23.173260453 + -5 Combine like terms: 5 + -5 = 0 0 + x = -23.173260453 + -5 x = -23.173260453 + -5 Combine like terms: -23.173260453 + -5 = -28.173260453 x = -28.173260453 Simplifying x = -28.173260453

Solution

The solution to the problem is based on the solutions from the subproblems. x = {18.173260453, -28.173260453}

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