Subject
Bank Exam
Topic
Prabashi Kallyan Bank Ltd Officer Cash - 25.09.2021
If x-y = 3, then what is the value of x³-y³-9xy?
If x-y = 3, then what is the value of x³-y³-9xy?
ক)
12খ)
18গ)
20ঘ)
27Explanation
দেওয়া আছে ,x-y=3 x³-y³-9xy=(x)³-(y)³-9xy =(x-y)³+3.xy.(x-y)-9xy =(3)³+3.xy.3-9xy =27+9xy-9xy =27Related questions
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