v^2+4v=-16

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Solution for v^2+4v=-16 equation:


Simplifying
v2 + 4v = -16

Reorder the terms:
4v + v2 = -16

Solving
4v + v2 = -16

Solving for variable 'v'.

Reorder the terms:
16 + 4v + v2 = -16 + 16

Combine like terms: -16 + 16 = 0
16 + 4v + v2 = 0

Begin completing the square.

Move the constant term to the right:

Add '-16' to each side of the equation.
16 + 4v + -16 + v2 = 0 + -16

Reorder the terms:
16 + -16 + 4v + v2 = 0 + -16

Combine like terms: 16 + -16 = 0
0 + 4v + v2 = 0 + -16
4v + v2 = 0 + -16

Combine like terms: 0 + -16 = -16
4v + v2 = -16

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

Add '4' to each side of the equation.
4v + 4 + v2 = -16 + 4

Reorder the terms:
4 + 4v + v2 = -16 + 4

Combine like terms: -16 + 4 = -12
4 + 4v + v2 = -12

Factor a perfect square on the left side:
(v + 2)(v + 2) = -12

Can't calculate square root of the right side.

The solution to this equation could not be determined.

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