Question

plz explain it and give answer ​

Answer 1

Step-by-step explanation:

(i) a²-(-6a²)

a²+6a²

7a²

(ii)(4x²-7xy+5y²)-(x²-5xy-y²)

4x²-7xy+5y²-x²+5xy+y²

3x²-2xy+6y²

Hope it helps now do rest by urself