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Simplify : (5a + 5b – C) (2b – 3c) - Mathematics

Sum

Simplify : (5a + 5b – c) (2b – 3c)

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Solution

(5a + 5b – c) (2b – 3c)

= 5a(2b –  3c) + 5b(2b – 3c) – c(2b – 3c)

= 10ab – 15ac + 10b2 – 15ac – 2bc + 3c2

= 10ab + 10b2 – 17bc – 15ac + 3c2

Concept: Multiplying a Polynomial by a Polynomial
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APPEARS IN

Selina Concise Mathematics Class 8 ICSE
Chapter 11 Algebraic Expressions
Exercise 11 (C) | Q 3.3 | Page 143
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