Question

Factorise :-
(За + 5b)² – 4с²​

Answer 1

Step-by-step explanation:

(3a+5b)²- (2c)²

(3a+5b+2c)-(3a+5b-2c)

9a²+25b²-4c²+30ab

Answer 2

Step-by-step explanation:

This is you step by step explanation buddy

hope you'll like the answer

please follow me if you like

good night then.