Answer: 4xy
Step-by-step explanation:
2xy - -2xy= 2 - -2= 4
babalik dun sa rule of adding an integers so yung 2 is e-kekeep habang yung - magiging + kc e-swiswitch, and yung -2 magiging +2 kasi opposite ng - is +, and magiging:
2 + 2= 4xy
Another explanation:
Combine Like Terms:
=2xy+2xy
=(2xy+2xy)
=4xy
Answer:
=4xy
