
Regardless of the sign of

, we have

(never negative). But multiplying by -1 makes it negative.
On the other hand,

which can never be negative for real

.
A: peak
B: falling
C:on the ground
Add 6 to both sides
2m2+7m+6=0
There would be
"five ways" to bring three DVD's. If you divide fifteen by three there would be five.

To prove your work:

Hope this helps!
The nth term is 9n-3. The 10th term is 87 and the 75th term is 642.