Question

pls answer fast
if answer is correct u will get 20 thanks​

Answer 1

2.) 97*102

97*102= (97-3)(100+2)

Using identity (x+a)(x+b) = x(sq.) + (a+b)x + ab

here x = 100 , a= -3 b= 2

(100+(-3)) (100+ 2) = 100(sq.) + ((-3)+2)100 + (-3)(2)

=> 10000 + (-3+2)100 + (-6)

=> 10000 + (-1)100 + (-6)

=>10000 + (-100) + (-6)

=> 10000 -100 - 6

=> 9794

Answer=>9794

#hopeithelps

Answer 2

I can't understand what you say in the bio