Will give medal. 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.)
A.
height: 19 in.
depth: 5 in.
B.
height: 21 in.
depth: 5 in.
C.
height: 19 in.
depth: 7 in.
D.
height: 21 in.
depth: 7 in.
I got this question wrong on a quiz, I thought it was C, but it was wrong. Does anyone know the correct answer?

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