FOIL (distriute)
tells how to multiply which ones
First terms
Inner terms
Outer terms
Last terms
(2n+2)(6n+1)
First (2n times 6n=12n^2)
Inner (2 times 6n=12n)
Outer (2n times 1=2n)
Last (2 times 1=2)
add them
12n^2+12n+2n+2
12n^2+14n+2
Answer:

Step-by-step explanation:
Given that,

We need to find the 15th term of the sequence. Put n = 15 in the above sequence so that,

So, the 15th term of the sequence is 8.
The answer is -7.4166666 or written as -7.4167
-6 + {14 + [60-9(4)]}
-6 + [14 + (60-36)]
-6 + (14+24)
-6 + 38
32