Hi guys,

I'm preparing for my exams and have been stuck at this problem for a
while now, i know my maths is really poor, would really appreciate some
pointers.

if algorithm A is of O(2n^3) and algorithm B is of O(2^n + n^2) and if
A is guaranteed to solve a problem of size n = 20 in 1 hr, then what
problem size could you solve with a machine 8 times as fast?

Also, how do i show that B is of O(2^n)?

Thanks so much folks.  thanks.


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