Make a square garden with 32 plants ... each plant needs 2 square feet

32 plants

2 square feet each of area

32 times 2=64 square feet

the garden is a square so

area=legnth times width but square is legnth=width so

area = legnth times legnth

area=64

64 = legnth times legnth

square root bot sides

8=legnth

8 feet is the legnth and width