[/img]IMO A.2^8
here it goes..
2^ (4-1)^2/2^(3-2)
it can be written as
2^(3)^2/2
hence 2^9/2 = 2^8.
Hope its helps...
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Source: Beat The GMAT — Problem Solving |
I agree with sudhir, but would just add a couple more brackets to make it clear how the powers are working in the numerator:
2^[(4-1)^2] / 2^(3-2)
2^(3^2) / 2^(3-2)
2^9 / 2^1
2^8
2^[(4-1)^2] / 2^(3-2)
2^(3^2) / 2^(3-2)
2^9 / 2^1
2^8
Rey Fernandez
Instructor
Manhattan GMAT
Instructor
Manhattan GMAT
thanks to both of you! I was originally instead of taking the three to a power of two I was multiplying by two...
Thanks again!!
Thanks again!!
