Factorise:-
(2p-3q)2 - (3p + 2q)2
hi apoorva,
here we must use (a+b)and (a-b)
so we get {(2p)2 - 2(2p)(3q) + (3q)2} - {(3p)2 + 2(3p)(2q) + (2q)2
(4p2 - 12pq + 9q2) - (9p2 + 12pq + 4q2)
now if we remove the bracket we get
4p2 - 12pq + 9q2 - 9p2 - 12pq - 4q2
4p2 - 9p2 - 12pq + 9q2 - 4q2
-5p2 - 24pq + 5q2
hope it helps