Question

using identities find the value of 98 × 97​

Answer 1

Answer:

9506

Step-by-step explanation:

98 × 97

(100 -2)× (100-3)               { (x+a)(x+b) = x^2 + (a+b)x +ab}

(100)^2 + ( -2 + (-3))100 + (-2 × -3)

10000 -500 +6

= 9506