2^16-1 is the ans ! please confirm !!
its of the form
(a+b)(a-b)=a^2-b^2
so every term taken in this way leads to 2^16-1
if its the right OA please confirm ! as well post the entire explanantion
Vishu
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Source: Beat The GMAT — Problem Solving |
ya my takes is A
2^16-1 is the ans ! please confirm !!
its of the form
(a+b)(a-b)=a^2-b^2
so every term taken in this way leads to 2^16-1
if its the right OA please confirm ! as well post the entire explanantion
Vishu
2^16-1 is the ans ! please confirm !!
its of the form
(a+b)(a-b)=a^2-b^2
so every term taken in this way leads to 2^16-1
if its the right OA please confirm ! as well post the entire explanantion
Vishu
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earth@work
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i m also getting A : 2^16-1
my method too same as vishu
(2^2-1)(2^2+1)(2^4+1)(2^8+1) = )(2^4-1)(2^4+1)(2^8+1)
=(2^8-1)(2^8+1)=2^16-1
my method too same as vishu
(2^2-1)(2^2+1)(2^4+1)(2^8+1) = )(2^4-1)(2^4+1)(2^8+1)
=(2^8-1)(2^8+1)=2^16-1
Hi,
Yes, the answer is A, and I think yours is the best way to do it.
Yes, the answer is A, and I think yours is the best way to do it.
earth@work wrote:i m also getting A : 2^16-1
my method too same as vishu
(2^2-1)(2^2+1)(2^4+1)(2^8+1) = )(2^4-1)(2^4+1)(2^8+1)
=(2^8-1)(2^8+1)=2^16-1
Ossa Elhadary, PhD, CISA, PMP
Math Specialist
Test Prep New York
maximize your score, minimize your stress
www.testprepny.com
[email protected]
Math Specialist
Test Prep New York
maximize your score, minimize your stress
www.testprepny.com
[email protected]
