Question

Evaluate
the products :
998​

Answer 1

Answer:

Ok

Step-by-step explanation:

$(998)3=(1000−2)3$

$Suitable identities is (x−y)3=x3−3x2y+$

$3xy2−y3$

$∴(1000−2)3$

$=(1000)3−3(1000)2(2)+3(1000)(2)2−(2)3$

$=1000000000−6000000+12000−8=$

$994011992$

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