Question

pls answer this question

Answer 1

Final Answer : 6

Steps and Understanding :
1) We will find the values of determinant as shown in pic.
2) Then, substitute those values in given. expression :
${2}^{2} = (3x - 2) - (x + 6) \\ = > 4 = 2x - 8 \\ = > 2x = 12 \\ = > x = 6$
Hence, the value of x is 6 .