Question

Using the formula of (a+b)(a-b) find (i)[ 3/2m+2/3n] [3/2m-2/3n] ​

Answer 1

Answer:

(a-b)(a+b)=a^2-b^2

so in given question

[3/2m+2/3n][3/2m-2/3n] becomes

(3/2m)^2-(2/3n)^2=

9/4m^2-4/9n^2. is the answer