GCSE Core Maths Skills revision B/6 changing the subject of a formula

Changing the subject of a formula - Grade B GCSE Maths Core Skills

[alicepocock]

watched helpful for remembering skills

[RawMaths]

nope, if you had say s=r + f^2 (f squared) then
you would just have r = s - f^2
you only need to square root if the subject has been squared.

[mennahaf]

Say if I'm looking for r to be subject of the formula do I have to change a f squared to a square root??