Question

Q.1. add x²+y²-2xy, -2x²-y²-2xy and 3x²+y²+xy
Q.2. subtract -x²+y²+2xy from 2x²-3y²
Q.3. add 12ab-10b²-18a² and 9ab+126²+14a²
Q.4. subtarct 5x³-2x²+3x+7 from 7x³+7x-5
plz answer these questions

Answer 1

hiii it is your answer I think it will help you

Answer 2

Answer:

Step-by-step explanation: