Question

Va rog mult ex 4 numai B-ul mulțumesc mult

Answer 1

f(-2)=4-3=1

f(-1)=2-3= - 1

f(1)=-2-3= - 5

f(2)= -4-3= -7

f(n)= -2n -3

1-1-5-7-2n-3=15

-2n-15=15

-2n=30

n= - 15