1)f(2) = 2 • 2 - 3 = 1

f(0) = 2 • 0 - 3 = -3

f(-1) = 2 • (-1) - 3 = -5

2) g(0) = 0^2 + 0 = 0

g(2) = 2^2 + 2 = 6

3)ф(-2) = -2-1/(-2+1)=-3/-1=1

ф(3) = 3-1/(3+1) = 2/4 = 1/2( або 0.5)