Ask your own question, for FREE!
Mathematics 24 Online
OpenStudy (anonymous):

can someone explain?

OpenStudy (anonymous):

z(5-z)+36=0 why do you put a -1 at the beggining -1(-z^2+5z+36)=-1(0)

Can't find your answer? Make a FREE account and ask your own questions, OR help others and earn volunteer hours!

Join our real-time social learning platform and learn together with your friends!
Can't find your answer? Make a FREE account and ask your own questions, OR help others and earn volunteer hours!

Join our real-time social learning platform and learn together with your friends!