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A cuboid has volume $3 x^{2} - 12 x$ . Which set could be its dimensions?

Class 9Algebraic IdentitiesPolynomials

A $3, x, (x - 4)$
B $3, x, (x - 12)$
C $3 x, x, (x - 4)$
D $x, x, (3 x - 12)$

Step-by-Step Solution

3 x^{2} - 12 x = 3 x (x - 4) = 3 \times x \times (x - 4)

. Multiplying

3 x, x, (x - 4)

would give a cubic.

Answer: A)

3, x, (x - 4)

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