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DETERMINANTS — Maths STD 12 Science — Question

Gujarat BoardEnglish MediumSTD 12 ScienceMathsDETERMINANTS1 Mark
Question
If $\ \begin{bmatrix}2\text{x} & 5\\8 & \text{x}\\\end{bmatrix} \ = \ \begin{bmatrix}6 & -2\\7 & 3\\\end{bmatrix}, \ $ , Write the value of x.
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Answer

$\text{x} = \pm 6.$

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