#Algabra - differentiate
8 messages · Page 1 of 1 (latest)
I've compared it to zero
and then I guess I should multiple -4x by 1 AND zero by (x2-1)^2
What seems to be the problem ?
4x = 0 leads to x = 0.
It's not a value which makes the denomimanor equal to zero, so it's a valid solution.
It should be -4x =0
that's right
so it is