A quadratic pattern has a third term equal to 2,a fourth term equal to -2 and the sixth term equal to-16 . calculate the second difference of this quadratic pattern

2 answers

2 -2 -16
.-4.-14
.....-10
oops. I missed the skipped term
2 -2.... -8.. -16
..-4..-6....-8
......-2...-2