Question

Avaluate 2^3x-1 for x=1

Answer 1

The answer to 2^3-1= 7

Answer 2

4 or 7 (Check the explanation to see which one your equation actually is.

Explanation:

One thing I want to clarify for you, It's Evaluate, not Avaluate.

Okay so, we want to find the value of 2^3x-1 and we know x = 1.

You didn't really clarify if the expression was
`2^(3x-1)` or
`2^(3x)-1`, so I'll be doing both:

For
`2^(3x-1)`, we should plug in x to get
`2^(3(1)-1)` and then simplify to get
`2^(2)`.

2 to the power of 2 or
`2^(2)` is equal to 2 * 2 or 4.

The second one,
`2^(3x)-1`, we should plug in x to get
`2^(3(1))-1` and then to become
`2^(3)-1`. 2 to the power of 3 or
`2^(3)` is 8 and then minus 1 is 7.