i got the derivitave to be 20x^4(8-x)^4 + 16x^5(8-x)^3
then i got the zeroes to be 8 and 0. I said that the local max is 8 and zero is neither, but it said that it is wrong
i got the derivitave to be 20x^4(8-x)^4 + 16x^5(8-x)^3
then i got the zeroes to be 8 and 0. I said that the local max is 8 and zero is neither, but it said that it is wrong
Your derivative is very wrong. How did you get it? Please show all working.