Question

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

Answer 1

i) the value of a = 0 is non-permissible

ii) the value of b = 0 is non-permissible

Explanation:

i) the given expression is
`(5a^(2) + 80a )/(50ab^(2) )`

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
`*` ( a + 16)

if a = -16 then the value of the expression becomes zero.