Multiply: X2+ X + 1 by 1 − X - Mathematics

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Sum

Multiply: x2+ x + 1 by 1 − x

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Solution

(x2+ x + 1) (1 −  x) = 1(x2 + x + 1) − x(x2 + x + 1)

= x2 + x + 1 − x3 − x2 − x

= 1 − x3

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Chapter 11: Algebraic Expressions - Exercise 11 (C) [Page 143]

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Selina Concise Mathematics Class 8 ICSE
Chapter 11 Algebraic Expressions
Exercise 11 (C) | Q 1.1 | Page 143

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