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Let a and b be chosen at random from {0,1,2,3,4,5,6,7,8,9}.

Find the probability that x^2 + ax + b^2 = 0 will have
at least one real solution.

(No Solution Yet, 1 Comments) Submitted on 2017-03-01 by Ady TZIDON   
Difficulty: 2 of 5 Bonus: Two Geometric Series (in Just Math) Rating: 3.67
Find a geometric series of 3 or more positive integers, starting with 1, such that its sum is a perfect square.

See if you can find another such series.

(Solution Posted, 10 Comments) Submitted on 2003-07-14 by Brian Smith   
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