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more factoring for mice and elephants
Posted:
Jan 14, 2012 5:19 PM


I suppose this quadrivariate polynomial doesn't factor over Q, but Derive 6.10 fails to notice this fact in acceptable time:
16*a^3*d^3  48*a^2*b*c*d^2 + 27*a^2*c^4  6*a*b^2*c^2*d + 27*b^4*d^2  16*b^3*c^3
Martin.



