plus theta to the 8 times 1 minus theta well 2 times 1 minus theta and then there's a minus here so I have another negative 1 appearing here ok and then me if the function really looks like this I mean the derivative is actually 0 over here and over here so hopefully we can find where this is equal to 0 easily and really we find hopefully at 0.8 so let's see this thing equal to 0 while there's a theta to the 7 here theta up to the 8th over there so we can rewrite this as so I want this equal to 0 but this is