What is the value or the expression 2x squared-2(x+4) when x=5
2 answers:
You might be interested in
Given:
First 10 term of a geometric series are:
To find:
The expression that represents the sum of the series.
Solution:
The first term of the given geometric series is:
The common ratio of the given geometric series is:
The sum of first n terms of a geometric sequence is:
Where r is the common ratio.
Putting in the above formula, we get
Therefore, the correct option is C, i.e., .