# Make x the subject

Watch
#1
x/a^2−3b=2c
0
1 month ago
#2
Hi, I’ve just finished my GCSEs and am strong in Maths so I hope this is right and helps you.

+3b
(x/a)^2=3b+2c

Square root
(x/a)=rt 3b+2c

Multiply by a
x=a(rt 3b+2c)

Also there is a free app called Photomath which solves maths questions for you. Hope this helps!
Last edited by sciencegcsesss; 1 month ago
0
1 month ago
#3
(Original post by sciencegcsesss)
Hi, I’ve just finished my GCSEs and am strong in Maths so I hope this is right and helps you.

+3b
EDIT your post - it's against forum rules to post a solution.
0
1 month ago
#4
+3b on both sides to get: x/a^2 = 2c+3b
then times both sides by a^2 to get x = a^2(2c+3b)

hope that helps
0
1 month ago
#5
(Original post by Muttley79)
EDIT your post - it's against forum rules to post a solution
Why are you telling me what to do and just ordering it in such a rude manner? All you needed to do was reply and say that it’s a rule, rather than telling me what to do and capitalising it — don’t treat people like they’re idiots.

Since when was this a rule in TSR? I created a forum when I needed help with a science question where I got helpful answers.

And why are you only telling this to me and not the other poster?
Last edited by sciencegcsesss; 1 month ago
0
X

new posts
Back
to top
Latest
My Feed

### Oops, nobody has postedin the last few hours.

Why not re-start the conversation?

see more

### See more of what you like onThe Student Room

You can personalise what you see on TSR. Tell us a little about yourself to get started.

### Poll

Join the discussion

#### Feeling behind at school/college? What is the best thing your teachers could to help you catch up?

Extra compulsory independent learning activities (eg, homework tasks) (5)
3.73%
Run extra compulsory lessons or workshops (23)
17.16%
Focus on making the normal lesson time with them as high quality as possible (24)
17.91%
Focus on making the normal learning resources as high quality/accessible as possible (19)
14.18%
Provide extra optional activities, lessons and/or workshops (39)
29.1%
Assess students, decide who needs extra support and focus on these students (24)
17.91%