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with the polynomial: 2x^2 + 7x - 15 = 0

do these apply?

There are 2 real roots.
There are 2 irrational roots.

4 answers

well, both can't be true, can they ?

Hint, have you calculated the discriminant ?

Yes it is 169

Oh, so there are 2 real roots?

You got it, and to top it off, since 169 is a perfect square they are even rational
(still real though)

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