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Simplify the Following: `(6(8)^(N+1)+16(2)^(3n-2))/(10(2)^(3n+1)-7(8)^N)` - Mathematics

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Question

Simplify the following:

`(6(8)^(n+1)+16(2)^(3n-2))/(10(2)^(3n+1)-7(8)^n)`

Solution

`(6(8)^(n+1)+16(2)^(3n-2))/(10(2)^(3n+1)-7(8)^n)`

`=(6(2^3)^(n+1)+16(2)^(3n-2))/(10(2)^(3n+1)-7(2^3)^n)`

`=(6(2^(3n+3))+16(2)^(3n-2))/(10(2)^(3n+1)-7(2^(3n)))`

`=(6xx2^(3n)(2^3)+16(2)^(3n)2^-2)/(10(2)^(3n)(2^1)-7(2^(3n)))`

`=(2^(3n)((6xx2^3)+(16xx1/2^2)))/(2^(3n)((10xx2)-7))`

`=((6xx8)+(16xx1/4))/(20-7)`

`=(48+4)/(13)`

`=52/13`

= 4

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Chapter 2: Exponents of Real Numbers - Exercise 2.1 [Page 12]

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RD Sharma Mathematics [English] Class 9
Chapter 2 Exponents of Real Numbers
Exercise 2.1 | Q 7.4 | Page 12

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