Answer
2, 5
Work Step by Step
A rational expression is undefined when the denominator is equal to zero. Thus, we set the denominator equal to zero to find:
$$ p^2-7p+10=0 \\ p\left(p-2\right)-5\left(p-2\right)=0 \\ \left(p-2\right)\left(p-5\right)=0 \\ p=2,5$$
