I think you mean p^2 + 13 p -30 = 0  which can be factored into

(p+15)(p-2) =0 giving two solutions p=2 and p=-15

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John McCann

Or,

 

p^2 - 13p - 30 = 0................(p - 15)...(p + 2)...giving.......p = 15.........p = - 2.........which is why I did not answer the question.

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