Cambridge Algebra Trick 💥 | If x + 1/x = 4, Find x³ + 1/x³ | Genius Shortcut Explained!

This is one of those beautiful algebra identity problems that always show up in Cambridge IGCSE, SAT, WAEC, or JAMB exams.
We’re solving:

👉 If x + 1/x = 4, find x³ + 1/x³
It looks simple, but it hides a powerful identity that many students overlook.

In this video, I’ll guide you step-by-step through the easiest and fastest way to get the correct answer — using smart algebraic reasoning, not memorization.
You’ll learn how to:

✅ Use the cube identity: (x + 1/x)³ = x³ + 1/x³ + 3(x + 1/x)

✅ Simplify expressions efficiently

✅ Build speed for Cambridge, SAT, and WAEC exams

✅ Avoid the common mistake students make on this exact question


💡 Challenge: Don’t scroll — pause and try to solve it before watching my steps! Comment your answer below 👇 and let’s see who gets it first.

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