<mark.underwood@...> wrote:>> But these three can be simplified to

Correction: 9x^2 + 3x + 41 is prime from x=-13 to x=26

> x^2 + x + 41 (prime from x=0 to x=39)

> 4x^2 + 2x + 41 (prime from x=-20 to x=19)

> 9x^2 + 3x + 41 (prime from x=-20 to x=19)

>

Mark (no alcohol required to goof up) Underwood