Rationalizing Radicals Made Easy

追加: 2026-05-05

[00:00:00]Wait, are you still stuck with radicals in the denominator? Let me show you the fastest way to clean this up. We start with 2 root 3 over 7 root 2. Now, here's the trick. Multiply by root 2 over root 2. Why? Because it doesn't change the value, but it removes the radical from the bottom. Now, multiply straight across. On top, 2 root 3 * root 2 gives 2 root 6. On the bottom, 7 root 2 * root 2 gives 7 root 4. And root 4 is just 2.

[00:00:31]So, now we have 2 root 6 over 7 * 2.

[00:00:34]Simplify that and you get root 6 over 7.

[00:00:37]Clean. Simple. Done. Stop overthinking radicals. Just multiply smart.