x*x+2+x*10=56

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Solution for x*x+2+x*10=56 equation:


Simplifying
x * x + 2 + x * 10 = 56

Multiply x * x
x2 + 2 + x * 10 = 56

Reorder the terms for easier multiplication:
x2 + 2 + 10x = 56

Reorder the terms:
2 + 10x + x2 = 56

Solving
2 + 10x + x2 = 56

Solving for variable 'x'.

Reorder the terms:
2 + -56 + 10x + x2 = 56 + -56

Combine like terms: 2 + -56 = -54
-54 + 10x + x2 = 56 + -56

Combine like terms: 56 + -56 = 0
-54 + 10x + x2 = 0

Begin completing the square.

Move the constant term to the right:

Add '54' to each side of the equation.
-54 + 10x + 54 + x2 = 0 + 54

Reorder the terms:
-54 + 54 + 10x + x2 = 0 + 54

Combine like terms: -54 + 54 = 0
0 + 10x + x2 = 0 + 54
10x + x2 = 0 + 54

Combine like terms: 0 + 54 = 54
10x + x2 = 54

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 = 54 + 25

Reorder the terms:
25 + 10x + x2 = 54 + 25

Combine like terms: 54 + 25 = 79
25 + 10x + x2 = 79

Factor a perfect square on the left side:
(x + 5)(x + 5) = 79

Calculate the square root of the right side: 8.888194417

Break this problem into two subproblems by setting 
(x + 5) equal to 8.888194417 and -8.888194417.

Subproblem 1

x + 5 = 8.888194417 Simplifying x + 5 = 8.888194417 Reorder the terms: 5 + x = 8.888194417 Solving 5 + x = 8.888194417 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 = 8.888194417 + -5 Combine like terms: 5 + -5 = 0 0 + x = 8.888194417 + -5 x = 8.888194417 + -5 Combine like terms: 8.888194417 + -5 = 3.888194417 x = 3.888194417 Simplifying x = 3.888194417

Subproblem 2

x + 5 = -8.888194417 Simplifying x + 5 = -8.888194417 Reorder the terms: 5 + x = -8.888194417 Solving 5 + x = -8.888194417 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 = -8.888194417 + -5 Combine like terms: 5 + -5 = 0 0 + x = -8.888194417 + -5 x = -8.888194417 + -5 Combine like terms: -8.888194417 + -5 = -13.888194417 x = -13.888194417 Simplifying x = -13.888194417

Solution

The solution to the problem is based on the solutions from the subproblems. x = {3.888194417, -13.888194417}

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