If x - y = 3, then what is the value of x3 - y3 - 9xy?
A. 3
B. 9
C. 18
D. 27
Answer: Option D
Solution (By Examveda Team)
(x - y) = 3(x - y)3 = 27
⇒ x3 - y3 - 3xy(x - y) = 27
⇒ x3 - y3 - 9xy = 27
This Question Belongs to Arithmetic Ability >> Algebra
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