(z^2-81)*(z+4)=

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Solution for (z^2-81)*(z+4)= equation: 


Simplifying
(z2 + -81)(z + 4) = 0

Reorder the terms:
(-81 + z2)(z + 4) = 0

Reorder the terms:
(-81 + z2)(4 + z) = 0

Multiply (-81 + z2) * (4 + z)
(-81(4 + z) + z2(4 + z)) = 0
((4 * -81 + z * -81) + z2(4 + z)) = 0
((-324 + -81z) + z2(4 + z)) = 0
(-324 + -81z + (4 * z2 + z * z2)) = 0
(-324 + -81z + (4z2 + z3)) = 0
(-324 + -81z + 4z2 + z3) = 0

Solving
-324 + -81z + 4z2 + z3 = 0

Solving for variable 'z'.

The solution to this equation could not be determined.

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