Write v as a linear combination of u₁, u₂, and u₃, if possible. (If not possible, enter IMPOSSIBLE.)
v = (0, 5, 9, 0), u₁ = (1, 1, 2, 2), u₂ = (2, 3, 5, 6), u₃ = (−3, 1, −4, 2)