Answer:

Step-by-step explanation:









Answer:
-216 x^3
Step-by-step explanation:
(-6x)^3
This is really (-6x)* (-6x) * (-6x)
-216 x^3
Step-by-step explanation:
Because 2x and 40° are complementary angles.

Answer:
Step-by-step explanation:
First I think this is a test and second I don't know what you're asking for.But if you can explain those things then, you have my help.