Question

Help i cant figure out what i did wrong

Answer 1

`A= \begin{bmatrix} -2&5\\-2&-5\\-2&1\\-5&-2 \end{bmatrix}\hspace{5em}B= \begin{bmatrix} 2&4\\5&-2\\-4&1\\2&-3 \end{bmatrix} \\\\\\ A+B\implies \begin{bmatrix} -2+2&5+4\\-2+5&-5+(-2)\\-2+(-4)&1+1\\-5+2&-2+(-3) \end{bmatrix}\implies \begin{bmatrix} 0&9\\3&-7\\-6&2\\-3&-5 \end{bmatrix}`