Rationalising the Denominator | GCSE Maths 2025

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[UncleRiaz]

Root 3 x minus root 3 = -3 and -2 is a multiple of the fraction so it is -1 1 root 3

[Ayanokoji_]

Thank you sir for explaining this good 👍🏻

[NoreenKerenga-pgzu]

Please, explain how you calculated the second last equation to get the final answer. I'm confused

[Muzan-DK]

can you also say as the answer: -1 + root 3

[Justin-rtx]

no way this is grade 9 bro, got my exam next week im set!

[NotEver]

Aint no way this is grade 9 topic, ong there are angle problems harder than this

[PrabhKaur-ktzs]

Meanwhile I got -1 - 2 root 3😅 howw
Can someone please explain me why my sign is wrong it's negative

[RaniSingh-ditp]

For those who didn't understand the second last step:
It is an algebraic identity - a²-b² = (ab)-(ac)
It simplifies to:
1² - √3²
= 1 - √3

Hope this helps😊