Determine the non-permissible value(s) of the variable(s).

Answer:
i) the value of a = 0 is non-permissible
ii) the value of b = 0 is non-permissible
Step-by-step explanation:
i) the given expression is [tex]\frac{5a^{2} + 80a }{50ab^{2} }[/tex]
ii) if a = 0 then the expression will become infinity hence the value of a = 0 cannot be used
iii) if b = 0 then the expression will become infinity, hence the value of b = 0 also cannot be used.
iv) In the numerator of the expression if it is factorized we get 5a[tex]\times[/tex] ( a + 16)
if a = -16 then the value of the expression becomes zero.