x^2+2x=11+x+x+2

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Solution for x^2+2x=11+x+x+2 equation: 


Simplifying
x2 + 2x = 11 + x + x + 2

Reorder the terms:
2x + x2 = 11 + x + x + 2

Reorder the terms:
2x + x2 = 11 + 2 + x + x

Combine like terms: 11 + 2 = 13
2x + x2 = 13 + x + x

Combine like terms: x + x = 2x
2x + x2 = 13 + 2x

Add '-2x' to each side of the equation.
2x + -2x + x2 = 13 + 2x + -2x

Combine like terms: 2x + -2x = 0
0 + x2 = 13 + 2x + -2x
x2 = 13 + 2x + -2x

Combine like terms: 2x + -2x = 0
x2 = 13 + 0
x2 = 13

Solving
x2 = 13

Solving for variable 'x'.

Move all terms containing x to the left, all other terms to the right.

Simplifying
x2 = 13

Take the square root of each side:
x = {-3.605551275, 3.605551275}

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