Question

2 ki power x minus 2 ki power x minus 1 is equal to 4 then the value of x ki power x is${2}^{x } - {2}^{x - 1} = 4$​

Answer 1

2^x - 2^x-1 = 4

2^x - 2^x/2 = 4

2^x ( 1- 1/2) = 4

2^x .1/2 =4

2^x = 8

x= 3

hope it helps ^_^