Nico had to do math homework about a subject that his professor hasn´t explained completely well (because that professor was really bad in explaining XP).
So he approached his professor and he told him: "Resolve this X"

Nico tenía tarea de matemática de un tema que su profesor no había explicado del todo bien (porque ese profesor en particular era muy malo explicando XP)
Entonces él se acercó a su profesor y le dijo: "Resolvéme esta X"