Question

Evaluate the following products without multiple directly. 103×107​

Answer 1

Answer:

sorry Dr I don't know

how r u

Answer 2

Answer:

Here is your solution

Evaluate the following products without multiplying directly

(i)103×107

(100 + 3) (100 + 7)

Now, by using identity :-

(x + a) (x + b) = x² + (a+b)*x + ab

x = 100 , a = 3 , b = 7

Now put value of x , a & b

=> (100)² + (3+7)*100 + (3*7)

=> 10000 + 1000 + 21

=> 11021