Question

Using proper identity, evaluate the following:(a) 94×97

Answer 1

Answer:

(x-a) × (x-b) = x^2 -(a+b)x +ab

(100-6)×(100-3) = 100^2 -(6+3)100 +6×3

= 10000 - 900 +18

=9100+18

=9118