Here,
$\begin{array}{l}
a=2 \\
b=-7 \\
c=6
\end{array}$
Discriminant $D$ is diven by:
$\begin{array}{l}
D=b^{2}-4 a c \\
=(-7)^{2}-4 \times 2 \times 6 \\
=49-48 \\
=1
\end{array}$
Here,
$\begin{array}{l}
a=2 \\
b=-7 \\
c=6
\end{array}$
Discriminant $D$ is diven by:
$\begin{array}{l}
D=b^{2}-4 a c \\
=(-7)^{2}-4 \times 2 \times 6 \\
=49-48 \\
=1
\end{array}$