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Multiply: 6a - 5b and - 2a - Mathematics

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Question

Multiply: 6a - 5b and - 2a

Sum

Solution

Product of 6a - 5b and - 2a

= -2a (6a - 5b)

= - 2a × 6a + (- 2a) × (- 5b) 

= - 12a2 + 10ab 

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Performs Operations (Addition and Subtraction) on Algebraic Expressions with Integral Coefficients Only.
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Chapter 11: Fundamental Concepts (Including Fundamental Operations) - Exercise 11 (C)

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Selina Concise Mathematics [English] Class 7 ICSE
Chapter 11 Fundamental Concepts (Including Fundamental Operations)
Exercise 11 (C) | Q 1.4
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