# How do you multiply #((1, 3))# with #((-1, 2, 2, 4))#?

##### 1 Answer

Apr 20, 2016

You can't.

#### Explanation:

Perhaps one of the following was intended:

**Possibility 1**

Multiply

Remember we multiply "rows" by "columns"

There is only one row:

but two columns:

**Possibility 2**

Multiply

I've left this one undone since I think it is less likely to be what is intended.

**Remember**:

For matrix multiplication,