Find the value of x if \left| \begin{array}{ccc}{1} & {x} & {0} \\ {2} – InterviewSolution

1.	Find the value of x if \left\| \begin{array}{ccc}{1} & {x} & {0} \\ {2} & {-1} & {3} \\ {-2} & {1} & {4}\end{array}\right\|=0
Answer» 1(-4-3)-x(8+6)=0-7-14x=0so 14x=-7so x=-1/2

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