If m = –4, n = –2, then the value of m^3-3m^2+3m+3n+3n^2+n^3 is

RRB Junior Engineer Stage 1 Model Papers 8

Question : 18 of 100

Marks: +1, -0

If m = –4, n = –2, then the value of

m^3-3m^2+3m+3n+3n^2+n^3

Solution:

m^3-3m^2+3m+3n+3n^2+n^3

⇒(-4)^3-3(-4)^2+3(-4)+3(-2)+3(-2)^2+(-2)^3

⇒ – 64 – 48 – 12 – 6 + 12 – 8

⇒ – 126

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