Quadratic Bagel

Algebra Level 3

Find the set of all integers a 1 a_1 such that f ( x ) = 4 x 2 + a 1 x + 21 f(x)=4x^2+a_1x+21 has rational factors/roots. How many prime numbers are in this set ???

1 0 2 3

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Frank Giordano by Frank Giordano , 57, USA

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1 solution

Frank Giordano
Feb 19, 2018

G-filtered Polycules

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