Answer:
All of them are integers
Step-by-step explanation:
All are numbers of integers so all should be correct
Step-by-step explanation:
на я был в bbs я был в душе
Answer:
The first, second, third, and last ones are correct.
Step-by-step explanation:
The first one is the exact same as the last one, the second one you just square everything, and the third one only squares the x. The fourth one is wrong because that equals 81x^2-y^2. Hope this helps!
Answer:
hewo, im sorry if i knew how to do this, i would help...
Step-by-step explanation: