Question

evaluate using suitable identity 43*37

Answer 1

Answer:

1591

Step-by-step explanation:

43 * 37

= (40+3)*(40 - 3)  (it is in the form (a+b)(a-b) = a^2 - b^2)

= 40^2 - 3^2

= 1600 - 9

= 1591