Find the m-intercepts of the graph of the given function. If there is more than one solution, separate them by a comma. If there is no real solution, enter DNE for "does not exist": f(x)= 8p^2 - 6p - 10.

a. Enter the EXACT SIMPLIFIED values.
m -intercepts:

b. Enter the approximated values rounded to three decimal places.
m-intercepts: