Answer:
4x^2 + 12xy + 9y^2
Step-by-step explanation:
The area of a square is the square of the length of a side. It is also the length of a side multiplied by itself.
A = s^2
A = (2x + 3y)^2
A = (2x + 3y)(2x + 3y)
Use FOIL.
A = 4x^2 + 6xy + 6xy + 9y^2
A = 4x^2 + 12xy + 9y^2
