17, 13, 9,5...
determine the sequence

This is an arithmetic sequence because we are adding the same amount each time. In this case, we are adding -4 to each term to get the next term

17 + (-4) = 13

13 + (-4) = 9

9 + (-4) = 5

and so on. The starting term is

The common difference is

The nth term of the arithmetic sequence can be found by this formula

For instance, if n = 2, then,

which matches up with the second term listed.

(x+3)(x+7)

step-by-step explanation:

the line of