Question

Find the sum: (3xy-9y²)+(5x²+7y²)​

Answer 1

Answer:

-9y^2+7y^2 +5x^2+3xy

-2y^2+5x^2+3xy

Step-by-step explanation:

this is only answer as only two values are like

hop it helps you

Answer 2

Step-by-step explanation:

(3xy-9y^2)+(5x^2+7y^2)

3xy(5x^2+7y^2)+ -9y^2(5x^2+7y^2)

15x^3y+21xy^3-45x^2 y^2-63y^4