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Algebra

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Moderate

Evaluate Second Order Determinant with a Variable

ALGEBR-AUJFBH

Evaluate the determinant.

$$\begin{vmatrix} (x-4)&(-3x)\\\ 2&3\\\end{vmatrix}$$

A

$-3x-12$

B

$18x-12$

C

$9x-4$

D

$9x-12$