Răspuns:
f(-2) = -2•(-2)^2 + 3•(-2) - 1
f(-2) = -8-6-1
f(-2)=(-15)
f(-1) = -2•(-1)^2 + 3•(-1) - 1
f(-1) = -2-3-1
f(-1)=(-6)
f(-2)+f(-1)=(-15-6)=(-21)
f(0) = -2•0^2 + 3•0 - 1
f(0) = (-1)
f(1) = -2•1^2 + 3•1 - 1
f(1) = -2+3-1
f(1)=0
f(0)-f(1)=(-1-0)=(-1)
