Question 230039
Before we start this problem, you need to be able to FACTOR A TRINOMIAL.  If ANYONE does NOT know how to factor a trinomial, PLEASE send me an Email at rapaljer@scc-fl.edu so I can send you some help on this MOST important topic!!


x^2 +21x-72=0


This is a quadratic equation that factors, so 
(x+24)(x-3)=0


There are two solutions:

x+24=0   so x =-24

x-3=0  so x= 3


I don't see a y in the problem.  You can't find y if you can't see it!!!


Dr. Robert J. Rapalje