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Feb 18, 2021 at 14:20 comment added Toby Mak Related but not a duplicate: If the coefficients of a quadratic equation are odd numbers, show that it cannot have rational roots
Jun 22, 2020 at 13:53 answer added Toby Mak timeline score: 1
Jun 22, 2020 at 13:35 comment added Bad at Mathematics @TobyMak I was hoping for an approach without using the options to be honest
Jun 22, 2020 at 13:34 comment added Toby Mak Have you tried making random quadratics and checking if they violate one of the criteria? You can rule out $B$ and $C$ this way.
Jun 22, 2020 at 13:26 history asked Bad at Mathematics CC BY-SA 4.0