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Nizux

A(6) and D(-4) are solutions to the equations

(6)^2 < 81  |  36 < 81

(-4)^2 < 81  |  16 < 81

bcalle

I just did one like this with you.
Take the number and square it. If it is less than 81, it is a solution. It cannot = 81 because the inequality is only <.

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