Help me in this question please

Let f (x) = x e8x. find a formula for the nth derivative of f, where n is any positive integer. use x and n in your answer if needed. f (n)(x) =

Can someone check if i did this right since i really want to make sure it’s correct. if you do you so much

Me complete this proof! prove that a quadrilateral is a square. me with the steps for this proof.