Question

Part A: The area of a square is (25x2 - 20x + 4) square units. Determine the length of each side of the square by factoring the area expression completely. Show your work. (3 points)

Part B: The area of a rectangle is (49x2 - 36y2) square units. Determine the dimensions of the rectangle by factoring the area expression completely. Show your work. (2 points)

Part C: The volume of a rectangular box is (x3 + 2x2 - 9x - 18) cubic units. Determine the dimensions of the rectangular box by factoring the volume expression completely. Show your work. (5 points)

Answer 1

help

Answer 2

Factor the polynomial 25x^2-20x+4
That is the answer to part A
Since the problem tells you that it is a square, you know the 2 factors are the same.

Answer 3

ok

Answer 4

what about part b

Answer 5

What did you get for part A?

Answer 6

(5x−2)2

Answer 7

Part B gives you the area of a rectangle. The area is the difference of two squares. Factor it. The factors will be the length and width of the rectangle.

Answer 8

oh

Answer 9

What are the factors?