In a2x2+ax, if ′a′ is a constant and ′x′ is a variable, this expression is a polynomial in
In this expression, a2x2 and ax are the two terms. Since, it is given that ′a′ is a constant and ′x′ is a variable, we can see that there is only one variable ′x′ in the polynomial thus making it a polynomial in one variable.