Question

Using suitable identities, evaluate (52)2

Answer 1

solution:-

52=50+2

(52)^2=(50+2)^2

now it is in the form of (a+b)^2 where a is 50 and b is 2 (1st identity).

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

(50+2)^2=(50)^2+(2)^2+2(50)(2)

=2500+4+200

=2704

hope it helps!!!