Answer:
4, 21
Explanation:
You want to know the next two terms of the sequence beginning ...
-64, -47, -30, -13, ...
Arithmetic sequence
In an arithmetic sequence each term is different from the previous one by a constant. Here, that constant is ...
(-47) -(-64) = 17
Next terms
This means we can find the next terms by adding 17 repeatedly to the last term shown:
5th term = -13 +17 = 4
6th term = 4 +17 = 21
The next two terms are 4 and 21.
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