The explicit formula for the sequence is 3n -10
<h3>What is an Arithmetic Sequence ?</h3>
An arithmetic sequence is a series of terms which have common difference between its consecutive numbers.
The sequence given is
−7, −4, −1, 2, 5, …
The common difference between each term is d =3
-4-(-7) = 3
-1-(-4) =3
The nth term for a sequence is given by

Here a is the first term = -7
n is the no. of terms = n
d is the common difference = 3
Therefore the equation will be

= -7 +3n -3
= 3n -10
Therefore the explicit formula for the sequence is 3n -10 .
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For this case we have:
Be a function of the form 
Where:

If we want to find f (-2), we substitute
, then:

Since we have a negative root, the result will be given by complex numbers. By definition:

So:

Answer:

Answer:
4 or 
Step-by-step explanation:
I used M a t h w a y. it's really helpful. Good luck.
The picture below is my answer of what I have seen.Thank you.
The answer is 3 (x+b) (x-2)
Yw! :)