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At which point on the following curve are the tangents parallel to the x-axis?

At which point on the following curve are the tangents parallel to the x-axis?

y=1-2x-3x^2

Hey how do i find this? Can someone direct me to the answer...

Thanks
I hope you saw what I said before I accidentally edited.
(edited 12 years ago)
Reply 2
so basically...

make the derivative 0 and factorise the expression and solve for x?
Original post by abdmoh!
so basically...

make the derivative 0 and factorise the expression and solve for x?


Basically, yeah.
Reply 4
Awesome thanks man

It worked alls good!

Thanks

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