Math, asked by shipramahajan1p7zhj2, 1 year ago

find value of x....ques 7

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Answers

Answered by sonabrainly
1

Given: 4^x-4^(x-1)


=> (4–1)*4^(x-1)


=> 3*4^(x-1)


=>3*4^(x-1)=24 (GIVEN)


=> 4^(x-1)=8


=> 2^(2*(x-1))=2^3


by equating the powers,


2x-2=3


=> 2x=5.


x=5/2

Answered by rssbi3137pa7bye
0

4^x-4^x-1=24

4^x-4^x/4=24

4^x{3/4}=24

4^x=32

2^2x=2^5

2x=5

x=5/2

i belive that this answer is correct.................................

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