Question

a flag is in the shape of a rectangle it has a length of (y + 5) inches and a width of (y - 5) inches. what is the area of the flag

Answer 1

Area = L x W
Area = (y+5) (y-5)
Use Foil to multipy (First, Outer, Inner, Last)
Area = y² -5y + 5y -25
Area = y² -25