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 - 7)2 represent?
The total base area of all the tanks
The total surface area of each tank
The area of the rectangular base of each tank
The area of a square shaped side of the tank
Stacey Warren - Expert brainly.com
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the total that EIGHT identical tanks can hold is
8 times (x + 1)(x - 7)^2
To start with - can you write write the volume of ONE tank?...
now - a 'rectangular prism is just a fancy name for a cuboid
the voloume of a cuboid is
l times w times h
but it tell you the the width and the height are both (x-7)
so how could you write l times w times h using that expression (x-7)??