its a
Step-by-step explanation:
a^4+2a+8 because if you combine like terms that is what you get
Answer:
1078495000
Step-by-step explanation:
I am not sure why you would need to know this but just use a calculator
Answer:
160cm³
Step-by-step explanation:
square based means equal sides
therefore 4cm×4cm=16cm²
16cm²×10cm=160cm³