In a2x2+ax, if ′a′ is constant and ′x′ is a variable,
this expression would become 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.