Question

5х2-3х-1

найдите: f(-1). f(0).f(2)

Answer 1

1.f(-1) = 5(-1)2 - 3(-1) -1 = -10+3-1= -8
2.f(0) = 5(о)2 - 3(0) -1 = 2
3.f(2) = 5(2)2 - 3(2) - 1 = 20 - 6 - 1 = 13 , наверное так