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CRGreathouse
#2
May10-09, 05:29 PM
Sci Advisor
HW Helper
P: 3,682
Magma says it's irreducible:
P<x,y> := PolynomialRing(IntegerRing(), 2);
Factorization(216*x^2*y^2+150*x^2+6*y^2+72*x*y^2+360*x^2*y+48*x*y+40*x+8*y+7);

[
    <216*x^2*y^2 + 360*x^2*y + 150*x^2 + 72*x*y^2 + 48*x*y + 40*x + 6*y^2 + 8*y 
        + 7, 1>
]

Total time: 0.140 seconds, Total memory usage: 7.28MB