Algebra-1

To find the 25th term of the sequence represented by 5, 2, -1, -4, -7,..., we can observe that each term is obtained by subtracting 3 from the previous term.

 

Starting from the first term (5), we can use the formula:

=+d×(n−1)

where:

represents the nth term of the sequence,

 represents the first term of the sequence (5),

d represents the common difference between the terms (-3),

and n represents the term number we want to find (25).

 

Substituting the values into the formula, we have:

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