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Simplify: (2−3−2−4)⁢(2−3+2−4) - Mathematics

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Question

Simplify:

`(2^-3-2^-4)(2^-3+2^-4)`

Sum
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Solution

`(2^-3-2^-4)(2^-3+2^-4)`

= `(1/2^3-1/2^4)(1/2^3+1/2^4)`

= `(1/8-1/16)(1/8+1/16)`

= `((2-1)/16)((2+1)/16)`

= `1/16xx3/16`

= `3/256`

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More About Exponents
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Chapter 2: Exponents - Exercise 2 (B) [Page 33]

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Selina Concise Mathematics [English] Class 8 ICSE
Chapter 2 Exponents
Exercise 2 (B) | Q 2.3 | Page 33
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