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GCSE Maths formula help

Hi,

It asks to make x the subject but I am unsure where to even start.

Any help would be appreciated

Thanks
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Reply 1
Avatar for wofldog
wofldog
Original post by econam
Hi,

It asks to make x the subject but I am unsure where to even start.

Any help would be appreciated

Thanks


For your first step, try simply squaring both sides of the equation!
Reply 2
Avatar for Sena5
Sena5
20
Original post by econam
Hi,

It asks to make x the subject but I am unsure where to even start.

Any help would be appreciated

Thanks


helpful?

MOD EDIT: Attachment removed.
(edited 10 years ago)
Reply 3
Avatar for Sena5
Sena5
20
anymore questions do not hesitate to ask.
Reply 4
Avatar for econam
econam
OP
11
Original post by kers123
anymore questions do not hesitate to ask.


Hi that's really helpful thanks, you know on the fifth line down? Have you factorised the the t^2 x^2 - x^2? to get x^2(t^2-1). Also how come you put it over (t^2-1) on both sides?
Reply 5
Avatar for Dilzo999
Dilzo999
19
Original post by kers123
helpful?

Dem paint skills.
Reply 6
Avatar for wofldog
wofldog
Original post by econam
Hi that's really helpful thanks, you know on the fifth line down? Have you factorised the the t^2 x^2 - x^2? to get x^2(t^2-1). Also how come you put it over (t^2-1) on both sides?


Yep, they've factorised it into x2(t2−1) x^2(t^2-1) and then divided both sides of the equation by t2−1 t^2-1
Reply 7
Avatar for econam
econam
OP
11
Thanks everyone for the help :smile:
Reply 8
Avatar for Sena5
Sena5
20
Original post by econam
Hi that's really helpful thanks, you know on the fifth line down? Have you factorised the the t^2 x^2 - x^2? to get x^2(t^2-1). Also how come you put it over (t^2-1) on both sides?


Have you factorised the the t^2 x^2 - x^2? to get x^2(t^2-1).
no. i have taken the common x^2 out so it becomes x^2(t^2-1).

Also how come you put it over (t^2-1) on both sides?
As it is multiplication i was able to divide both sides by (t^2-1).

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