z^2+4z+4=-64

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Solution for z^2+4z+4=-64 equation:


Simplifying
z2 + 4z + 4 = -64

Reorder the terms:
4 + 4z + z2 = -64

Solving
4 + 4z + z2 = -64

Solving for variable 'z'.

Reorder the terms:
4 + 64 + 4z + z2 = -64 + 64

Combine like terms: 4 + 64 = 68
68 + 4z + z2 = -64 + 64

Combine like terms: -64 + 64 = 0
68 + 4z + z2 = 0

Begin completing the square.

Move the constant term to the right:

Add '-68' to each side of the equation.
68 + 4z + -68 + z2 = 0 + -68

Reorder the terms:
68 + -68 + 4z + z2 = 0 + -68

Combine like terms: 68 + -68 = 0
0 + 4z + z2 = 0 + -68
4z + z2 = 0 + -68

Combine like terms: 0 + -68 = -68
4z + z2 = -68

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

Add '4' to each side of the equation.
4z + 4 + z2 = -68 + 4

Reorder the terms:
4 + 4z + z2 = -68 + 4

Combine like terms: -68 + 4 = -64
4 + 4z + z2 = -64

Factor a perfect square on the left side:
(z + 2)(z + 2) = -64

Can't calculate square root of the right side.

The solution to this equation could not be determined.

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