Simplify: 3"A"Xx 8"B" ÷ 4-6{"A"-(5"A"-overline(3"B"-2"A"))} - Mathematics

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Sum

Simplify: `3"a"xx[8"b" ÷ 4-6{"a"-(5"a"-overline(3"b"-2"a"))} ]`

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Solution

`3"a"xx[8"b" ÷ 4-6{"a"-(5"a"-overline(3"b"-2"a"))}]`

`=3"a"xx[(8"b")/4-6{"a"-(5"a"-3"b"+2"a")}]`

= 3a × [2b − 6 {a − 7a + 3b}]

= 3a × [2b − 6 {−6a + 3b}]

= 3a × [2b + 36a − 18b]

= 3a × [36a − 16b]

= 108a2 − 48ab

Concept: Simplification of Expressions
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Chapter 11: Algebraic Expressions - Exercise 11 (E) [Page 147]

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Selina Concise Mathematics Class 8 ICSE
Chapter 11 Algebraic Expressions
Exercise 11 (E) | Q 1.14 | Page 147
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