Questão 1867672

\(\begin{bmatrix} 1 & 4 \\ 9 & 16 \\ \end{bmatrix}\)

\(\begin{bmatrix} 2 & -4 \\ 6 & 8 \\ \end{bmatrix}\)

\(\begin{bmatrix} -5 & 8 \\ 9 & 16 \\ \end{bmatrix}\)

\(\begin{bmatrix} -5 & -10 \\ 15 & 10 \\ \end{bmatrix}\)