Hi Guys,
I received the following question during one of the GMAT practice tests:
[2^(4-1)^2]
---------------
[2^(3-2)]
I thought this would be fairly straightforward, but I got it wrong!!! I did 4-1 equals 3 therefore, on the top of the equation you get (2^3)^2 which will equal 2^6. And then on the bottom: 2^1. Therfore, subtracting the top from the bottom, you get 2^5. This is wrong. The official answer is 2^8. I tried getting their answer, but the only way I could would be to square 3, when its 2^3^2. However, I thought when you have an exponent raised to another exponent, it is simply multiplication.
Please help!!!
Thx.
I received the following question during one of the GMAT practice tests:
[2^(4-1)^2]
---------------
[2^(3-2)]
I thought this would be fairly straightforward, but I got it wrong!!! I did 4-1 equals 3 therefore, on the top of the equation you get (2^3)^2 which will equal 2^6. And then on the bottom: 2^1. Therfore, subtracting the top from the bottom, you get 2^5. This is wrong. The official answer is 2^8. I tried getting their answer, but the only way I could would be to square 3, when its 2^3^2. However, I thought when you have an exponent raised to another exponent, it is simply multiplication.
Please help!!!
Thx.
