Question

What is the seventh term of the sequence whose nth term is (n + 1)(n − 2)?

A.) 28

B.)35

C.) 36

D.) 40

Answer 1

To do this, you simply substitute 7 into the equation.

[(7) + 1][(7) − 2]
BODMAS tell us that we should do the sum in the brackets before anything else.
(8)(5)
8 X 5 = 40

The seventh term is 40. The answer is D)