$$A=\begin{pmatrix}x&-3\\ y&3\end{pmatrix}$$

$A $ is the matrix above.

  • 1
    $\begingroup$ Hi, what have you tried? where do you get stuck? Also, can you tell us a bit about what do you know currently so that we can help you at the right level? $\endgroup$ Sep 24, 2017 at 6:50

1 Answer 1


Calculate $A^2$

$$\begin{bmatrix}x&-3\\ y&3\end{bmatrix}\begin{bmatrix}x&-3\\ y&3\end{bmatrix}$$

$$=\begin{bmatrix}x^2-3y&-3x-9\\ xy+3y&-3y+9\end{bmatrix}$$

Then solve






Not the answer you're looking for? Browse other questions tagged .