Motivated by the formula $$ {x^n}=\sum\limits_{k=0}^n {\left( {\begin{array}{*{20}{c}} n \\ k \\ \end{array}} \right){{{\left( {x-1} \right)}}^k},} $$ we investigate factorizations of the lower-triangular Toeplitz matrix with (i; j )th entry equal to x i−j via the Pascal matrix. In this way, a new computational approach to the generalization of the binomial theorem is introduced. Numerous combinatorial identities are obtained from these matrix relations.