The polynomial x 3 + 5x 2 - 57x -189 expresses the volume, in cubic inches, of a shipping box, and the width is (x+3) in. If the width of the box is 15 in., what are the other two dimensions? ( Hint: The height is greater than the depth.)

Question

The polynomial x 3  + 5x 2 - ­57x -­189 expresses the volume, in cubic inches, of a shipping box, and the width is (x+3) in.  If the width of the box is 15 in., what are the other two dimensions? ( Hint: The height is greater than the depth.)

jonathan34 · Answer

hi

camraam · Answer

hello

mathmale · Answer

First of all, please express exponentiation using the symbol " ^ ."
Your "x 3  + 5x 2 - ­57x -­189," properly expressed, would be "x^3  + 5x^2 - ­57x -­189."

Now to the box:  The volume of a box is (length) (width) (height).

You are told that the width is represented by (x+3) inches.  You are also told that the actual width is 15 inches.  Please find x.

likeabossssssss · Answer

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