Question

can you multiply a 3x 3 matrix and a 3 x 2 matrix? How? I understand how to multiply (for example) a 3 x 2 and a 2 x3.

Answer 1

yup

Answer 2

the number of columns (say) is A is 3 and in B is 2. The rows are the same

Answer 3

oops neglect my previous post
and follow this one
to be compatible for multiplication the number of columns of the first matrix must be equal to the number of the rows in the second matrix

Answer 4

the number of columns (say) is A is 3 and that rows in B is also 3
hence finding AXB is possible