(z^2)+4z+19=0

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Solution for (z^2)+4z+19=0 equation:


Simplifying
(z2) + 4z + 19 = 0
z2 + 4z + 19 = 0

Reorder the terms:
19 + 4z + z2 = 0

Solving
19 + 4z + z2 = 0

Solving for variable 'z'.

Begin completing the square.

Move the constant term to the right:

Add '-19' to each side of the equation.
19 + 4z + -19 + z2 = 0 + -19

Reorder the terms:
19 + -19 + 4z + z2 = 0 + -19

Combine like terms: 19 + -19 = 0
0 + 4z + z2 = 0 + -19
4z + z2 = 0 + -19

Combine like terms: 0 + -19 = -19
4z + z2 = -19

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 = -19 + 4

Reorder the terms:
4 + 4z + z2 = -19 + 4

Combine like terms: -19 + 4 = -15
4 + 4z + z2 = -15

Factor a perfect square on the left side:
(z + 2)(z + 2) = -15

Can't calculate square root of the right side.

The solution to this equation could not be determined.

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