Question

Allowing
4.) Using suitable identity evalute the
47X53​

Answer 1

Answer:

47×53

(50-3)×(50+3)

2500-150+2500+150

5000

Answer 2

Answer:

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

(50-3)(50+3)

= 50^2-3^2

= 2491