Art a: the area of a square is (9x2 − 12x + 4) square units. determine the length of each side of the square by factoring the area expression completely. show your work. part b: the area of a rectangle is (25x2 − 16y2) square units. determine the dimensions of the rectangle by factoring the area expression completely. show your work

Part a:   for this case we have the following expression:   (9x2 - 12x + 4)  factoring we have:   (9x2 - 12x + 4) = (3x-2) * (3x-2)  answer:   the length of each side of the square is:   (3x-2)  part b:   for this case we have the following expression:   (25x2 - 16y2)  factoring we have:   (5x-4y) * (5x + 4y)  answer:   the dimensions of the rectangle by factoring the area expression are:   (5x-4y)  (5x + 4y)

0.7= 7/10
0.71= 71/100

Just choose a fraction between those two.