Question

What are the first four terms of the sequence represented by the expression n(n-2)-3?

a. -5, -2, 1, 4
b. -4, -3, 0, 5
c. -3, 0, 3, 6
d. -2, 0, 2, 4

Answer 1

For the 1st term, n = 1, so the 1st term will be 1(1 - 2) - 3
For the 2nd term, n = 2, so the 2nd term will be 2(2 - 2) - 3
For the 3rd term, n = 3, so the 3rd term will be 3(3 - 2) - 3

See a pattern?

Answer 2

so it would be b?

Answer 3

@Hero

Answer 4

Correct

Answer 5

Thank you :)