Algebra II: Binomial expansion - advanced example II

IGCSE 0606 syllabus, topic 12, Series: Use the binomial theorem for expansion of (a + b)^n for positive integral n; use the general term of the binomial expansion. For more math content and preparation for A Level exams 9709 and 9231 and IGCSE exams 0580 and 0606, subscribe to my YouTube channel!