\[x - одно\ число;\]
\[x + 12 - другое\ число.\]
\[x(x + 12) = 448\]
\[x^{2} + 12x - 448 = 0\]
\[D_{1} = 36 + 448 = 484 = 22^{2}\]
\[x_{1} = - 6 + 22 = 16;\ \]
\[x_{2} = - 6 - 22 < 0.\]
\[x + 12 = 16 + 12 = 28.\]
\[Ответ:\ 16\ и\ 28.\]