Question

If 4x - 4x-1 = 24, then the value of 2x is (here x and x-1 is in square root) ​

Answer 1

QUESTION $4x-4^{x-1}=24$

solution

4^x-4^x/4=24

4^x(1-1/4)=24

4^X(3/4)=24

4^x=32

2^(2x)=32

2^(2x)=2^5

2x=5

x=5/2

so 2x=2 x 5/2=5

so 2x=5  

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