### Home > MC1 > Chapter 3 > Lesson 3.3.3 > Problem 3-83

3-83.

Look at the generic rectangle below.

What two numbers are being multiplied using this rectangle? How can you tell?

Write the product as a sum of the areas and find the answer.

Look back at problem 3-63 if you are not sure about using generic rectangles.

We can see that

is a factor of both and , so we can put it on the diagram as shown.

Then we can see thatbelongs at the top. Again, reference problem 3-63 as a guide for this problem. Remember that you are adding the smaller areas to find the total area.