x(x+2)+2(x+2)=x

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Solution for x(x+2)+2(x+2)=x equation:


Simplifying
x(x + 2) + 2(x + 2) = x

Reorder the terms:
x(2 + x) + 2(x + 2) = x
(2 * x + x * x) + 2(x + 2) = x
(2x + x2) + 2(x + 2) = x

Reorder the terms:
2x + x2 + 2(2 + x) = x
2x + x2 + (2 * 2 + x * 2) = x
2x + x2 + (4 + 2x) = x

Reorder the terms:
4 + 2x + 2x + x2 = x

Combine like terms: 2x + 2x = 4x
4 + 4x + x2 = x

Solving
4 + 4x + x2 = x

Solving for variable 'x'.

Reorder the terms:
4 + 4x + -1x + x2 = x + -1x

Combine like terms: 4x + -1x = 3x
4 + 3x + x2 = x + -1x

Combine like terms: x + -1x = 0
4 + 3x + x2 = 0

Begin completing the square.

Move the constant term to the right:

Add '-4' to each side of the equation.
4 + 3x + -4 + x2 = 0 + -4

Reorder the terms:
4 + -4 + 3x + x2 = 0 + -4

Combine like terms: 4 + -4 = 0
0 + 3x + x2 = 0 + -4
3x + x2 = 0 + -4

Combine like terms: 0 + -4 = -4
3x + x2 = -4

The x term is 3x.  Take half its coefficient (1.5).
Square it (2.25) and add it to both sides.

Add '2.25' to each side of the equation.
3x + 2.25 + x2 = -4 + 2.25

Reorder the terms:
2.25 + 3x + x2 = -4 + 2.25

Combine like terms: -4 + 2.25 = -1.75
2.25 + 3x + x2 = -1.75

Factor a perfect square on the left side:
(x + 1.5)(x + 1.5) = -1.75

Can't calculate square root of the right side.

The solution to this equation could not be determined.

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