Question

attempt the following add 7m²+9n²+4 and 5n²-3m²​

Answer 1

Answer:

4m^2 + 14n^2 + 4

Step-by-step explanation:

Adding both the equation we get,

(7m^2 + 9n^2 + 4) + (5n^2 - 3m^2)

7m^2 - 3m^2 + 9n^2 + 5n^2 + 4

4m^2 + 14n^2 + 4