What is the value of the expression below when w =7 and x = 2? 3w – 4x
2 answers:
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Answer:
The first term is:
Step-by-step explanation:
The arithmetic sequence is defined by
where
is the first term
is the common difference
as
the 17th term of an arithmetic sequence is 51.
i.e.
so
∵
,
,
∵
Therefore, the first term is:
We start with
We can factor x at the numerator:
So, assuming (otherwise the expression would make no sense) we can simplify it:
This equation has no roots, so we can't simplify it any further.