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Omni-MATH / Let f(x)=x⁴+14x³+52x²+56x+16. Let z₁,z₂,z₃,z₄ be the four roots of f. Find the smallest possible value of |z_(a)z_(b)+z_(c)z_(d)| where a,b,c,d=1,2,3,4. · Discussion

Discussing Let f(x)=x⁴+14x³+52x²+56x+16. Let z₁,z₂,z₃,z₄ be the four roots of f. Find the smallest possible value of |z_(a)z_(b)+z_(c)z_(d)| where {a,b,c,d}={1,2,3,4}. · Omni-MATH

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