hiya, am now currently on 'equations and inequalities involving surds'
question is (2root5) + 5 = root5 - X
i'm trying to get all the x's on one side, then taking them out of the terms...
so i've got...
-X -(2root5)X
then, taking X out of it makes,
(-1 -(2root5))X
is that correct?
running through the question seems to get me the answer
-15 +(11root5)
over
-19
whereas they get
15-(11root5)
over
19
so i thought that somehow i was getting the answer to -x, instead of x. but i don't know where the X changed from a positive to a negative...