Question

by using a suitable identity evaluate the following 102×104​

Answer 1

Answer:

X + a into X + b it is the identity that is used

and answer is 10608

Step-by-step explanation:

since X = 100

(100+2) (100+4)

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

=100^2 + (2+4)100 +2×4

=10000 + 600 + 8

=10608

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Answer 2

=(100+2) (100+4)

=100^2+(2+4) 100+2×4

=10000+600+8

=10608