x^2+5+2x-10=50

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Solution for x^2+5+2x-10=50 equation:


Simplifying
x2 + 5 + 2x + -10 = 50

Reorder the terms:
5 + -10 + 2x + x2 = 50

Combine like terms: 5 + -10 = -5
-5 + 2x + x2 = 50

Solving
-5 + 2x + x2 = 50

Solving for variable 'x'.

Reorder the terms:
-5 + -50 + 2x + x2 = 50 + -50

Combine like terms: -5 + -50 = -55
-55 + 2x + x2 = 50 + -50

Combine like terms: 50 + -50 = 0
-55 + 2x + x2 = 0

Begin completing the square.

Move the constant term to the right:

Add '55' to each side of the equation.
-55 + 2x + 55 + x2 = 0 + 55

Reorder the terms:
-55 + 55 + 2x + x2 = 0 + 55

Combine like terms: -55 + 55 = 0
0 + 2x + x2 = 0 + 55
2x + x2 = 0 + 55

Combine like terms: 0 + 55 = 55
2x + x2 = 55

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 = 55 + 1

Reorder the terms:
1 + 2x + x2 = 55 + 1

Combine like terms: 55 + 1 = 56
1 + 2x + x2 = 56

Factor a perfect square on the left side:
(x + 1)(x + 1) = 56

Calculate the square root of the right side: 7.483314774

Break this problem into two subproblems by setting 
(x + 1) equal to 7.483314774 and -7.483314774.

Subproblem 1

x + 1 = 7.483314774 Simplifying x + 1 = 7.483314774 Reorder the terms: 1 + x = 7.483314774 Solving 1 + x = 7.483314774 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 = 7.483314774 + -1 Combine like terms: 1 + -1 = 0 0 + x = 7.483314774 + -1 x = 7.483314774 + -1 Combine like terms: 7.483314774 + -1 = 6.483314774 x = 6.483314774 Simplifying x = 6.483314774

Subproblem 2

x + 1 = -7.483314774 Simplifying x + 1 = -7.483314774 Reorder the terms: 1 + x = -7.483314774 Solving 1 + x = -7.483314774 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 = -7.483314774 + -1 Combine like terms: 1 + -1 = 0 0 + x = -7.483314774 + -1 x = -7.483314774 + -1 Combine like terms: -7.483314774 + -1 = -8.483314774 x = -8.483314774 Simplifying x = -8.483314774

Solution

The solution to the problem is based on the solutions from the subproblems. x = {6.483314774, -8.483314774}

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