Question

Avaluate 2^3x-1 for x=1

Answer 1

The answer to 2^3-1= 7

Answer 2

Answer:

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

Step-by-step 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.