Question

Using the identites find the following
(5/2a-b)(5/2a-b)​

Answer 1

Answer:

25/4a²-b²

Step-by-step explanation:

we know what,

(a-b)(a-b) =(a-b) ²

so (5/2a-b) (5/2a-b) =(5/2a-b)

hence, 25/4a²-b²