Question

by using a suitable identity,evaluate the following 102*104

Answer 1

(100+2) (100+4)
As We Know, (x+a)(x+b)=
$x { }^{2} + < a + b > x + ab$
=100X100+2+4X100+2X4
=10000+600+8
=10608

Answer 2

Answer:

102 * 104

a=100 b=2 c= 4

(a+b ) +c = a (b+c)

(100+2)4 =100(2+4)

408=600

lhs \rhs