Help with Matrix?
Can you just explain how to do it with whole numbers on the side?
To multiply a matrix by a number, you simply multiply each element in it
\[\large \color{red}{2\cdot}\begin{pmatrix}1&5\\6&0\end{pmatrix} = \begin{pmatrix} \color{red}{2\cdot}1& \color{red}{2\cdot}5\\ \color{red}{2\cdot}6& \color{red}{2\cdot}0\end{pmatrix} = \begin{pmatrix}2&10\\12&0\end{pmatrix} \]
Can you work the other matrix multipliction ? After that you can subtract the second matrix from the first
Subtraction is also component wise.
i.e. you subtract matrices just how you think you would.
Sorry for the delay, had to do something. Just to make sure my answer is Row one; -28,0 Row two= 7,-40
@ganeshie8
I think she/he means the final answer... it looks good !
You're right! Good job! haha
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