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:

4a. 150*6=900 g
4b. 450/150=3 eggs
5a. 11.96/4=$2.99/bag
5b. 2.99*9=$26.91 for 9 bags
Hope this helps!
Answer:
Area of the picture is 
Step-by-step explanation:
Given:
Outer rectangle dimensions are 10 cm by 12 cm.
Inner rectangle dimensions are 6 cm by 8 cm.
Area of the picture given as:

Outer rectangle area = 
Inner rectangle area = 
Therefore, the area of the picture is given:

Answer:
x = cd + b / a
Step-by-step explanation:
ax - b / d = c
ax - b = cd
ax = cd + b
x = cd + b / a