when you add two negatives its just like regular number, -3+-5=-8 same as 3+5=8
Answer:
Step-by-step explanation:
9n-2
First you do 3a^4(2b^6c^3)^2
=12a^4b^12c^6
The answer is D because when you insert it into a calculator it gives you D. Yet, if you do it manually you still get the same number .