Olivia helps paint a square mural in her classroom. Then she helps paint a mural in the hallway whose length is 5 feet longer and whose width is 2 feet shorter. Let X represent the side length of the mirror in olivia's classroom. Write an expression that represents the two binomials you would multiply to find the area of the hallway mirror. Use the expression to find the area of the hallway mirror if each side of the classroom Mural is 7 feet long.