Question

using the identity (a+b) (a-b)=a square - b square. Solve 43 × 57

Answer 1

(50-7) (50+7)
50*50-7*7
2500-49
2451

Answer 2

Hey friend, ☺️ here is your answer ____________________________

43 × 57
= ( 50 - 7) ( 50 + 7)
= (50)^2 - (7)^2 (by using the identity)
= 2500 - 49
= 2451

Hope this helps you...