Question

9.
Find the product without multiplying directly 93 x 97.​

Answer 1

Answer:

=93×97

=9,021 and...............

Answer 2

Answer:

9021

Step-by-step explanation:

(100-7) (100-3)

(x+a) (x+b)=x^2+(a+b)x+(ab)

here, change the sign of a and b

then,

x^2+(-a-b)x+(-a×-b)

100^2+(-7-3)100+(-7×-3)

10000+(-10)100+21

10000-1000+21

9000+21

9021

follow me