SOLUTION: a cardboard box has length x-2,width x+1,and height 2x (a) write an expression, in terms of x, to represent the volume of the box. (b) if x=8 centimeters, what is the number

Algebra ->  Volume -> SOLUTION: a cardboard box has length x-2,width x+1,and height 2x (a) write an expression, in terms of x, to represent the volume of the box. (b) if x=8 centimeters, what is the number      Log On


   



Question 133458:
a cardboard box has length x-2,width x+1,and height 2x
(a) write an expression, in terms of x, to represent the volume of the box.
(b) if x=8 centimeters, what is the number of cubic centimeters in the volume of the box?

Answer by checkley71(8403) About Me  (Show Source):
You can put this solution on YOUR website!
(X-2)(X+1)*2X
(X^2-2X+X-2)*2X
(X^2-X-2)*2X
2X^3-2X^2-4X ANSWER.
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IF X=8 THEN:
2*8^3-2*8^2-4*8
2*512-2*64-32
1024-128-32
864 CM^3 ANSWER.