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One factor of |(a^(2) + x,ab,ac),(ab,b^(...

One factor of `|(a^(2) + x,ab,ac),(ab,b^(2) + x,cb),(ca,cb,c^(2) + x)|`, is

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|(a^(2)+x,ab,ac),(ab,b^(2)+x,bc),(ac,bc,c^(2)+x)|

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If a,b, c, lambda in N , then the least possible value of |(a^(2)+lambda, ab,ac),(ba,b^(2)+lambda,bc),(ca, cb, c^(2)+lambda)| is