The area of the entire rectangle to the right is x(x+4). Find another expression for this area by finding the sum of the areas of the smaller rectangles.

x² + 4x

Step-by-step explanation:

Divide the rectangle into a square with sides 'x' and a rectangle with sides 'x' and '4'

(x)(x) + (4)(x)

x² + 4x

30 units^2

step-by-step explanation:

area is l × w

the length is 3

and the width is 10

3 × 10= 30 units squared