Middle School

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The dimensions of a box are \( x, 2x, \) and \( 3x \). Each dimension is decreased by 2. Calculate the volume of the box.

A) \( 3x^3 - 12x - 8 \)

B) \( -x^6 \)

C) \( 6x^3 - 2x^2 + 24x - 8 \)

D) \( 40x^3 \)

Answer :

Answer:

Correct choice is C) [tex]6x^3-22x^2+24x-8[/tex].

Step-by-step explanation:

Given that the dimensions of a box are x, 2x, and 3x.

Now each dimension is decreased by 2.

Then new dimensions of a box are (x-2), (2x-2), and (3x-2).

Now let's calculate the volume of the box which is given by

Volume = (Length) x (Width) x (Height)

[tex]=(x-2)(2x-2)(3x-2)[/tex]

[tex]=(2x^2-6x+4)(3x-2)[/tex]

[tex]=(2x^2-6x+4)(3x-2)[/tex]

[tex]=6x^3-22x^2+24x-8[/tex]

Hence correct choice is C) [tex]6x^3-22x^2+24x-8[/tex].

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Rewritten by : Barada