For a polynomial expression, all the exponents have to be whole numbers. They cannot be negative integers.
why should a variable have a exponent which is a whole number, to be called as polynomial? why can't the exponent be fraction like x1/2 or negative number like x-2?
An expression in which the variables involved have only whole numbers as exponents is called a polynomial .then what are those expressions whose power is not a whole number ?
The exponent can be a negative number