Answer:
-2x^2 + 5x - 8
Step-by-step explanation:
Answer:
do you have to expand it ?
Answer:
r
≥
7
Step-by-step explanation:
There are 
ways to order 
objects.
So, the answer is 
ways.
Answer:
(18-2)
Step-by-step explanation:
Use the formula of PEMDAS to determine which is first.
The p stands for parentheses so you would perform that operation first.
