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Evaluate: (3c - 5d)(4c - 6d)

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Question

Evaluate: (3c - 5d)(4c - 6d)

Sum
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Solution

(3c - 5d)(4c - 6d)

= 3c (4c - 6d) - 5d(4c - 6d)

= 12c2 - 18cd - 20cd + 30d2 

= 12c2 - 38cd + 30d2 

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Chapter 13: Fundamental Concepts (Including Fundamental Operations) - Exercise 11 (C)

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R.K. Bansal Concise Mathematics [English] Class 7 ICSE
Chapter 13 Fundamental Concepts (Including Fundamental Operations)
Exercise 11 (C) | Q 3.02
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