# Modulo division with negative power ?

1. Jan 5, 2012

### smslca

if f(x)modg(x) is valid(means , if it yield a remainder) then , can there be negative powers of x in f(x)?

for example
is (x-29)mod(x2 - 3) possible ?
can we do modulo division like this or is it strictly defined only for positive powers of x?

2. Jan 5, 2012

### ramsey2879

Negative powers involves fractions but the mod function doesn't have use of fractional parts as far as I know. Some one with a greater understanding may give you a better answer.