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Question
Find the values of following polynomials at m = 1, n = –1 and p = 2:
m3 + n3 + p3 – 3mnp
Solution
Given, m = 1, n = –1 and p = 2
So, putting m = 1, n = –1 and p = 2 in the given expressions, we get
m3 + n3 + p3 – 3mnp = (1)3 + (–1)3 + (2)3 – 3(1)(–1)(2)
= 1 – 1 + 8 + 6
= 14
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