If A=⎡⎢⎣21−14x6013⎤⎥⎦ is a singular matrix, then the value of x is [1 mark]

If A=⎡⎢⎣21−14x6013⎤⎥⎦ is a singular matrix, then the val

1.	If A=⎡⎢⎣21−14x6013⎤⎥⎦ is a singular matrix, then the value of x is [1 mark]
Answer» If $A = ⎡ ⎢ ⎣ \begin{matrix} 2 & 1 & - 1 4 & x & 6 0 & 1 & 3 \end{matrix} ⎤ ⎥ ⎦$ is a singular matrix, then the value of $x$ is [1 mark]