March 2026 Add Math Question Many Students Got Confused By

In this video, we look at a question from the March 2026 Add Maths paper involving a binomial expansion with an unknown power n.

The question asks you to show that n is divisible by 3 if a constant term exists in the expansion.

We go through:
• using the general term
• forming the constant term condition
• equating powers of x to zero
• understanding why divisibility by 3 follows naturally

This was a question that many students found confusing in the exam.

For more revision videos, recent paper discussions, and difficult questions:

YouTube: MathPrep with Ahmad Bilal

Видео March 2026 Add Math Question Many Students Got Confused By канала MathPrep with Ahmad Bilal