Surds Expand and Simplify

GCSE Maths revision tutorial video.

[mrjiries]

Man, you’re really good at teaching. My math teacher over complicates things

[guyharbidge]

Lemme just leave my thanks here, finally cracked this old chestnut!

[TalitaYuaha-bvif]

Thanks so much I thoroughly understood, best tutor ever

[KRXSS_]

Got a question. why at 2:24 did you not do it as Root 5 and instead you just left it as 5 at the beginning before you started simplifying

[miriambineng]

This was very, very helpful. Thank you😊

[commentconnoisseur]

The last one appears to be wrong. Shouldn't the solution be:
12 + 7√2 as two negatives make a positive

(take away -7 = +7)

[nyashadzingirai]

Isn't root 2 and root 2 root 4 as you said