Answer:
81
Step-by-step explanation:
9^2 means that you are squaring nine
when you square a number you multiply it by itself
so
9 x 9 =81
hope this helps :)
Answer:
Step-by-step explanation:
Next time please add commas or spaces to make it clear where it stops but it's the third one
Answer:
(6n
3
−8n
2
−4n−3)
Step-by-step explanation:
Answer:
-19
Step-by-step explanation: