Sam made a scale drawing of a house and its lot. the scale he used was 1 centimeter = 5 meters. the actual length of the back patio is 20 meters. how long is the patio in the drawing?

Plz determine whether the polynomial is a difference of squares and if it is, factor it. y2 – 196 is a difference of squares: (y + 14)2 is a difference of squares: (y – 14)2 is a difference of squares: (y + 14)(y – 14) is not a difference of squares