Surds Rationalising the Denominator

GCSE Maths revision tutorial video.

[athenaenergyshine]

This just makes me realise why sometimes we have problems in maths. We don’t understand what is being asked. Rationalising is make the number rationalised because surds are irrational. Thank you for all you do. Please keep making maths more sense so that we done go insane.

[abdullahhussain]

Thank you
Have an exam tomorrow and needed some revision and this was a great place :)

[ayeharuna]

Thanks a lot friend, your explanations was helpful.

[thespicycake]

Thank you so much for this video it was easy to learn from and understand 😉

[kavitarampaul]

you taught me more in 30 minutes than my add math teacher did in a week

[thomasstarlingcollector]

Thank you for these: I have my mocks beginning Monday kicking off with a maths non calc paper. Using these now to aid my revision :)

[pbjtxkm]

For the last question at 19:30 can you not simplify 8 plus 7 root 2 over 2, to 4 plus 7 root 2? As 8 in the numerator can be divided by 4 in the denominator?

[coolguy]

19:33 Can't we still divide both terms by 2 to give 4 + 3.5root2?

[raynalddarko]

Thank you but the last question the last method ...cant 2 go into 8 ...4 times?? So why is it still 8 +7 square root 2 ...I wan to understand the thing thats all I am confused

[amaya]

Thank you soo much you are the best tutor

[JoeMama-bzop]

what if its just a root on top and bottom?