the question is in da image! ty its from Khan academy btw if that helps :)

Answer:
Sorry, I just know (x + y) and ( x - y). Hope it help!
Step-by-step explanation:
x + y = 4 + 2= 6
x - y = 4 - 2= 2
Answer:
Step-by-step explanation:
You have the closest to zero in the right spot but you need to flip the other two