Question

evaluate the following using suitable identities --(998)^3

Answer 1

I hope this is correct

Answer 2

Hii.. !!

Here is ur answer :--

(998)^3

We can evalute this by using the identity (a-b) ^3

So,

(1000-2)^3

=> (1000)^3 - (2)^3 - 3 * 1000 * 2 ( 1000- 2)

=> 1000000000 - 8 - 6000 ( 1000-2)

=> 1000000000 - 8 - 6000000 + 12000

=> 1000012000 - 6000008

=> 994011992

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Hope it helps!!