Should I of taken further maths gcse? Does it really matter for oxbridge or top unis

No, they won't care.
As far as GCSEs are concerned unis generally are not interested in what options you took. They may care about the national curriculum subjects you have to take (maths, English language, maybe science - with no preference between combined/double vs triple science), but otherwise principally if they score GCSEs formally at all normally they just look at your overall grade profile (e.g. number of GCSEs total and number of grades at X level or above).
You should aim to do A-level FM if you're aiming for economics at LSE though.

Hey everyone, I wanted some advice about GCSEs and applying to competitive unis like Oxbridge, LSE, UCL, or Warwick.
I took Combined Science instead of Triple Science (Triple was only for 3 out of 12 classes at my school).
I dropped Further Maths GCSE (only ~30/360 kids at my school did).
My predicted grades are 999998886 with 9s in maths combined science rs and geo, and I’m aiming for Economics ( with Maths and probably Further Maths at A-level ).
Would universities care that I didn’t do Triple Science or Further Maths at GCSE? And would taking extra GCSEs (like Further Maths) actually make a difference for top unis, or is it better to focus on getting top grades in my current subjects? And should I repick further maths gcse
Thanks!

Hi thanks for your response, but I do have a question, if they don't care then why do people take triple science or further maths at gcse?

Hi! I applied to UCL, Warwick and Oxford last October. I got 9-9 in combined science (after dropping triple), and whilst I did do further maths, I got only a low 6. I had slightly lower gcse grades than the ones your predicted and got offers from Warwick and UCL quite early on for biosciences. I did get rejected from Oxford before interview, but I think this was more down to my lower than average GCSE grade ratios rather than my course choices.
From what I’ve heard, universities don’t really care whether you’ve done combined or triple science (and they didn’t seem to care with me lol, even as someone applying for a science subject), nor about further maths as not every school even offers it. So I would say don’t worry about either, just focus on getting the best grades you can in what you’re currently doing and I’m sure you’ll do great
Best of luck!

Hi congrats on getting in to those amazing unis, so overall would you say I should drop further maths and not repick it?

Hey everyone, I wanted some advice about GCSEs and applying to competitive unis like Oxbridge, LSE, UCL, or Warwick.
I took Combined Science instead of Triple Science (Triple was only for 3 out of 12 classes at my school).
I dropped Further Maths GCSE (only ~30/360 kids at my school did).
My predicted grades are 999998886 with 9s in maths combined science rs and geo, and I’m aiming for Economics ( with Maths and probably Further Maths at A-level ).
Would universities care that I didn’t do Triple Science or Further Maths at GCSE? And would taking extra GCSEs (like Further Maths) actually make a difference for top unis, or is it better to focus on getting top grades in my current subjects? And should I repick further maths gcse
Thanks!

Thank you
I would just stick with normal GCSE maths. However, have a look at what the unis you’re thinking of require in terms of Alevel courses as I’m guessing for economics some may require A-level further maths, for which GCSE further maths could be beneficial. Again you’d need to check if the college you’re applying to requires gcse further maths to do alevel further maths.
I do A-level maths (OCR) and some of the content covered in GCSE further maths came up in the first year, but I didn’t really find that it helped that much so it’s not a necessity especially if you’re confident you can achieve a grade 9.
Sorry for the very wordy answer lol but I hope it’s helped 😅 If you have any questions about a-level maths/further maths feel free to ask

No school can demand you do level 2 FMaths to do A level as many schools don't offer it. It would be an unfair requirement.