What is the area of a rectangle 6x to the third power y by 5 xy cm

The area of a rectangle is equal to length times width.

Mathematically, .

We can arbitrarily choose one expression for length and one for width; the result is the same.

Let's say that  cm is the length, and  cm is the width.

We simply write .

I am assuming you did not mean to write  for the first dimension.

Distributive property