Question

where did i go wrong? Im trying to find the limit

Answer 1

nothing is wrong, just do one more step

Answer 2

\(\lim_{x\rightarrow 16}\dfrac{16-x}{(x-16)(4+\sqrt x)}=\lim_{x\rightarrow 16}\dfrac{-(x-16)}{(x-16)(4+\sqrt x)}\)

Answer 3

then cancel out the same term, plug 16 into x and you get the answer