Question

expand (1/3m+1/5n) ²​

Answer 1

Answer:

By using identity (a+b)^2=a^2+b^2+2ab

Step-by-step explanation:

(1/3m)^2 + (1/5n)^2 +2*1/3m*1/5n

1/9m^2 + 1/25n^2+ 2/15mn