t(t+1)=0
divide both sides by (t)
0/t = 0
t+1=0
subtract (1) from both sides
t=-1
* there is another way to complete this problem but the above example uses the zero product property
-3n(2n-5)=0
divide both sides by (-3n)
0/-3n = 0
2n-5=0
add (5) to both sides
2n = 5
divide both sides by (2)
n= 5/2 or 2.5
