Top network posts

• 16 What is known about primes of the form $x^2-2y^2$?
• 15 The meaning of Inverse Matrix
• 8 What is the value of Exponential Geometric Sum?
• 7 The roots of the general quartic in $a+b+c$ form.
• 6 Have the answer. Need the problem.
• 6 Number of sudokus with no consecutive arithmetic progression of length 3 in any row or column.
• 6 Find the remainder of the polynomial division $p(x)/(x^2-1)$ for some $p$
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