Answer:
4n²+2n as a factorial is given as:

Step-by-step explanation:
We are given an expression which has to be converted into factorial form.
The expression is as follows:

Now we know that 2n+1 and 2n differs by '1' and the next smaller term is '2n-1'.
Hence, multiplying and dividing by '(2n-1)!'; we get:

we know that x(x-1)(x-2)! = x!, so:

Answer:
60 miles per hour
Step-by-step explanation:
Use speed = distance / time
Speed = 240 / 4
240 / 4 = 60
Speed = 60
Answer:
(5-1)/(5-1)= 4/4= 1
y - 1 = x - 1
y = x
Step-by-step explanation:
Answer:
*round - answer is 7
Step-by-step explanation:
anything 5 or greater rounds up, so 6 rounds up to 7 since 9 > 5