Answer:
x^2 + 9x + 20
Step-by-step explanation:
x^2 + 5x + 4x + 20
x^2 + 9x + 20
all u have to do is combine liked terms
Answer:
7/9
Step-by-step explanation:
Think of 1 as being 9/9. The difference between 9/9 and 2/9 is 7/9, which is the answer
The sequence is geometric and the common ratio is 2
For this case we have the following function:

By definition, we have that a linear equation is of the form 
On the other hand, a quadratic equation is of the form
Then, the given equation is not a linear equation, it is not of the form 
Answer:
No, the equation is not linear. It is not of the form 