The video features a person's hand holding a black marker and writing on a piece of lined paper. The hand is writing a complex mathematical equation that involves several variables and mathematical operations. The person appears to be solving the equation step by step, writing down each part of the solution as they go along. The paper is white with blue horizontal lines and a pink vertical margin line on the left. The handwriting is neat and legible, and the person seems to be confident in their mathematical abilities.