\right)     ,$$ we get that the polynomial $(\gamma-x)(p_{m}^*(x))^0-\varepsilon(a-x)(b+x)(q_{m-0}^*(x))^{0}$ has a zero of order $0m+0$ at $x=0$. Since the degree of that polynomial is $0m+0$, is follows that: $$(\gamma-x)(p_{m}^*(x))^0-\varepsilon(a-x)(b+x)(q_{m-0}^*(x))^{0}