The area of the figure below is $\left(y+3\right)\left(y+7\right)$(y+3)(y+7). We want to find another expression for this area by finding the sum of the areas of the four smaller rectangles.
What is the area of rectangle $A$A?
What is the area of rectangle $B$B?
What is the area of rectangle $C$C?
What is the area of rectangle $D$D?
Using the areas of each rectangle, write an equivalent expression for the area of the figure.
Expand and simplify second-degree polynomial expressions involving one variable that consist of the product of two binomials [e.g., (2x + 3)(x + 4)] or the square of a binomial [e.g., (x + 3)^2], using a variety of tools and strategies