4z^3 - 6
4*2^3 - 6
4*8-6
32-6
26
Answer:
The expanded form of the expression
is 
Step-by-step explanation:
We need to write expanded form of the expression 
For expansion we will use distributive property of multiplication over addition

Applying above rule:

So, the expanded form of the expression
is 
That doesn’t make sense. Did you mean 15?
You can find the volume by multiplying the Length X width X height.
(2 - 3i) + ( x + yi) = 6
(x + yi) = 6 - (2 - 3i)
Distribute the - to the 2 - 3i and get
x + yi = 6 - 2 + 3i
Accumulate like terms.
x + yi = 4 + 3i. Answer