Answer:
<em>The n-th term for the sequence will be: </em>
Step-by-step explanation:
Given sequence is: 7, 14, 23, 34, 47. 62, 79, ........
The n-th term of a quadratic sequence is:
For ....
For ....
For ....
Subtracting equation (1) from equation (2), we will get......
Subtracting equation (2) from equation (3), we will get.......
Now, subtracting equation (4) from equation (5)...........
Plugging this into equation (4), we will get....
Now, plugging and into equation (1) .........
Thus, the n-th term for the sequence will be: