A pet shop had 8 identical fish tanks in the shape of rectangular prisms. The width and height of each tank was (x - 7) inches and the length was 8 inches more than its width. The expression below shows the maximum amount of water which all the tanks together can hold.

8(x + 1)(x - 7)2

What does the factor (x + 1)(x – 7)2 represent?

Question

A pet shop had 8 identical fish tanks in the shape of rectangular prisms. The width and height of each tank was (x - 7) inches and the length was 8 inches more than its width. The expression below shows the maximum amount of water which all the tanks together can hold.

8(x + 1)(x - 7)2

What does the factor (x + 1)(x – 7)2 represent?

anonymous · Answer

(x-7)^2, where x-7 is width and x-7 is also a height. so it would be area of rectangle formed by width and height of the box.