Answer:
the standard form of this equation will be 3z^4 + 2z^3 - z^2 + 5z
Step-by-step explanation:
as much as I would like to, I'm really not that good at explaining things
Answer:

Step-by-step explanation:
Because of the power of a power property, which states that
, where m and n are real numbers, the expression you mentioned can be simplified by applying this property like this: 
Answer:
30 i think
Step-by-step explanation: