find the first four terms

Question

-7n^{^2}+9n+1

Answer 1

1st term N=1:

(-7)(1)^2 + 9(1) + 1 =

(-7)*1 + 9*1 + 1 =

-7 + 9 + 1 =

3

2nd term N=2:

(-7) (2^2) + 9(2) + 1 =

(-7)(4) + 9*2+1 =

-28 + 18 + 1 =

-9

3rd term N=3:

(-7)(3^2) + 9*3 + 1 =

(-7)*9 + 9*3 + 1 =

-63 + 27 + 1 =

-35

4th term N=4:

(-7)(16) + 9*4 + 1=

-112 + 36 + 1 =

-75