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.
Form and solve linear equations and inequations, quadratic and simple exponential equations, and simultaneous equations with two unknowns
Apply algebraic procedures in solving problems