### Home > CCA > Chapter 3 > Lesson 3.3.2 > Problem 3-103

3-103.

Multiply each of the following expressions. Show all of your work. Homework Help ✎

(

*x*+ 3)(4*x*+ 5)

Use a generic rectangle to multiply.

Put the products on the outside of the rectangle.

Use length times width to find the areas of the small rectangles.

Write the total area as a sum.

Follow the steps in part (a).

Follow the steps in part (a).

Follow the steps in part (a).

4*x*^{2} + 12*x* + 5*x* + 15

4*x*^{2} + 17*x* + 15