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Evaluate: - Mathematics

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Sum

Evaluate:

`(5^2-3^2)xx(2/3)^-3`

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Solution

`(5^2-3^2)xx(2/3)^-3`

=`(5xx5)-(3xx3)xx(3/2)^3`

=`25-9xx(3/2xx3/2xx3/2)`

=`16xx27/8=54`

Concept: Concept of Exponents
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APPEARS IN

Selina Concise Mathematics Class 8 ICSE
Chapter 2 Exponents
Exercise 2 (A) | Q 1.06 | Page 31
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