Question

Please help i will mark brainliest

Answer 1

Answer:

2. $\left[\begin{array}{ccc}1&4\\0&3\\\end{array}\right]$

3. $\left[\begin{array}{ccc}-3&21&60\\-15&9&-45\\\end{array}\right]$

4. $\left[\begin{array}{ccc}6&-14\\-2&-6\\\end{array}\right]$

Step-by-step explanation:

2. This matrix is easy, as it just requires addition.

$\left[\begin{array}{ccc}1&4\\0&3\\\end{array}\right]$    +     $\left[\begin{array}{ccc}0&0\\0&0\\\end{array}\right]$   =  $\left[\begin{array}{ccc}1&4\\0&3\\\end{array}\right]$

3. This matrix requires for the matrices to be multiplied first, then added.

$\left[\begin{array}{ccc}9&-15&18\\-27&15&-9\\\end{array}\right]$    +     $\left[\begin{array}{ccc}-12&36&42 \\12& -6 & -36 \\\end{array}\right]$     =   $\left[\begin{array}{ccc}-3&21&60\\-15&9&-45\\\end{array}\right]$

4.  Here we can add the last 2 matrices to find x.

$\left[\begin{array}{ccc}2&-8\\-4&2\\\end{array}\right]$   +   $\left[\begin{array}{ccc}4&-6\\2&-8 \\\end{array}\right]$  = $\left[\begin{array}{ccc}6&-14\\-2&-6\\\end{array}\right]$

Hope this helps! (Please consider giving brainliest)