How do you find the discriminant of #-21x ^ { 2} - 15x - 24#?
1 Answer
Jan 25, 2018
The discriminant is
Explanation:
When an expression is given in standard form,
With this expression:
#a=-21# #b=-15# #c=-24#
Since the discriminant is negative, plugging the values of the above
There will be 2 imaginary solutions, though.