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Popular >

2^x-2^{x-1}=4

Solution

2^{x} - 2^{x - 1} = 4

Solution

x = 3

Solution steps

2^{x} - 2^{x - 1} = 4

Factor

2^{x} - 2^{x - 1} : 2^{x - 1}

2^{x - 1} = 4

Apply exponent rules

x - 1 = 2

Solve

x - 1 = 2 : x = 3

x = 3

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6^{x - 7} - 8 = 40

Frequently Asked Questions (FAQ)

What is the answer to 2^x-2^{x-1}=4 ?
The answer to 2^x-2^{x-1}=4 is x=3
Solve for x: 2^x-2^{x-1}=4
The solution is x=3