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Find the values of following polynomials at m = 1, n = –1 and p = 2: mn + np + pm - Mathematics

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Question

Find the values of following polynomials at m = 1, n = –1 and p = 2:

mn + np + pm

Sum

Solution

Given, m = 1, n = –1 and p = 2

So, putting m = 1, n = –1 and p = 2 in the given expressions, we get

mn + np + pm = (1)(–1) + (–1)(2) + (2)(1)

= –1 – 2 + 2

= –1

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Chapter 10: Algebraic Expressions - Exercise [Page 322]

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NCERT Exemplar Mathematics [English] Class 7
Chapter 10 Algebraic Expressions
Exercise | Q 67. (d) | Page 322
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