Simplify : a2 − 2a + {5a2 − (3a - 4a2)} - Mathematics

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Sum

Simplify : a2 − 2a + {5a2 − (3a - 4a2)}

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Solution

= a2 − 2a + {5a2 − 3a + 4a2}

= a2 − 2a + {9a2 − 3a}

= a2 − 2a + 9a2 − 3a

= 10a2 − 5a

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 1.01 | Page 147
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