1. Jamie has incorrectly tried to calculate:

$3\times{2}^{3}+\sqrt{25}\times({3}^{2}\times2+3)$

His working is shown below.

$\begin{matrix} & & 3\times{2}^{3}+\sqrt{25}\times({3}^{2}\times2+3)\\ & = & 3\times{2}^{3}+\sqrt{25}\times(9\times5)\\ & = & 3\times{2}^{3}+\sqrt{25}\times(45)\\ & = & {6}^{3}+5\times(45)\\ & = & 216+225\\ & = & 441\end{matrix}$

Identify the two mistakes that have been made.