Answer:
4.
f(x) = (x + 2)(x + 1)(x - 3) = x^3 - 7·x - 6
a = 0 ; b = -7 ; c = -6
5.
a = -3 ∧ b = -2 ∧ c = -3
Step-by-step explanation:
the process is shown above hope you understand.
Answer:
Step-by-step explanation:
Distance covered by the train in crossing the pole = 100 m.
- Hence, the speed of the train is 72 km/h