Question

If 2^x- 2^x-1 =4, then the value of x^x is: A)27 B)4 C) 1 D) 256

Answer 1

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Answer 2

Answer:

A=27

Step-by-step explanation:

2^x-2^x-1=4

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

2^x-1(1)=4

2^x-1=2^2

x-1=2

x=3

x^x=3^3=27