[quote=lyounamu]Would you like to elaborate on that? I don't understand what you mean.
Might be wrong but:
log(base2)((x(x^2-4))/x+2))=3
8=x(x^2-4)/x+2
(factorise)
x(x-2)(x+2)/x+2=8
x^2-2x-8=0
factorise
x=4 or -2
is that rite?
the mark that you are given reflects what you would have got in a comprehensive..
for example
so if i got 80 at selective and the school is doing work that is of a higher difficulty
then you migjht get 85..