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Friday, 03 July 2026
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If \(\begin{vmatrix} 3 x \\ 2 x - 2 \end{vmatrix} = -2\), find the value of x.

If \(\begin{vmatrix} 3 & x \\ 2 & x - 2 \end{vmatrix} = -2\), find the value of x.
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  • A -8
  • B 4
  • C -4
  • D 8
Correct Answer: Option A
Explanation:
\(\begin{vmatrix} 3 & x \\ 2 & x - 2 \end{vmatrix} = 3(x - 2) - 2x = -2\)
\(3x - 6 - 2x = -2 \implies x - 6 = -2\)
\(x = -2 + 6 = 4\)

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