Because you can just simplify to have 1-2 terms only. Eg:
13+2y+4y (this is a trinomial as it has 3 terms) can be simplified to just give 13+6y
Here is your answer:
2b + 7b^2 - 2 + 3b - 1 + b
Combine 2b and 3b
2b+3b=5b
Then do the exponent rule:
7×7=49b
Which equals:
(5b) b^2 + ( 2 ) b + (4b)
Answer:
<em> 728 km / lit</em>
Step-by-step explanation:
kilometers per liter = kilometers / liters
k/l = 484848 / 666
kilometers per liter = 728
The shelf can hold: 15 x 5 = 75 books
Two thirds of the shelf: 75(2/3)= 50 books