x(x+2)+3=-2(x+2)

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Solution for x(x+2)+3=-2(x+2) equation:


Simplifying
x(x + 2) + 3 = -2(x + 2)

Reorder the terms:
x(2 + x) + 3 = -2(x + 2)
(2 * x + x * x) + 3 = -2(x + 2)
(2x + x2) + 3 = -2(x + 2)

Reorder the terms:
3 + 2x + x2 = -2(x + 2)

Reorder the terms:
3 + 2x + x2 = -2(2 + x)
3 + 2x + x2 = (2 * -2 + x * -2)
3 + 2x + x2 = (-4 + -2x)

Solving
3 + 2x + x2 = -4 + -2x

Solving for variable 'x'.

Reorder the terms:
3 + 4 + 2x + 2x + x2 = -4 + -2x + 4 + 2x

Combine like terms: 3 + 4 = 7
7 + 2x + 2x + x2 = -4 + -2x + 4 + 2x

Combine like terms: 2x + 2x = 4x
7 + 4x + x2 = -4 + -2x + 4 + 2x

Reorder the terms:
7 + 4x + x2 = -4 + 4 + -2x + 2x

Combine like terms: -4 + 4 = 0
7 + 4x + x2 = 0 + -2x + 2x
7 + 4x + x2 = -2x + 2x

Combine like terms: -2x + 2x = 0
7 + 4x + x2 = 0

Begin completing the square.

Move the constant term to the right:

Add '-7' to each side of the equation.
7 + 4x + -7 + x2 = 0 + -7

Reorder the terms:
7 + -7 + 4x + x2 = 0 + -7

Combine like terms: 7 + -7 = 0
0 + 4x + x2 = 0 + -7
4x + x2 = 0 + -7

Combine like terms: 0 + -7 = -7
4x + x2 = -7

The x term is 4x.  Take half its coefficient (2).
Square it (4) and add it to both sides.

Add '4' to each side of the equation.
4x + 4 + x2 = -7 + 4

Reorder the terms:
4 + 4x + x2 = -7 + 4

Combine like terms: -7 + 4 = -3
4 + 4x + x2 = -3

Factor a perfect square on the left side:
(x + 2)(x + 2) = -3

Can't calculate square root of the right side.

The solution to this equation could not be determined.

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