Hey there!
This can be written as

This is in form of

, it can be expanded as
=> (n-7)(n+7)=0
=> n -7 = 0 or n + 7 = 0
=> n = 7 or n = -7
So option 7 , -7 are correct.
Hope this is clear :)
Have a good day:)
Answer:
(10,0), -(10,0) (0,10) and (0.-10)
Step-by-step explanation:
Answer:
12 and 8
Step-by-step explanation:
basic knowledge of math i guess
hope that helps love