Three Dimensional Geometry: JEE Main 2021 Mathematics question

Let ($\lambda$, 2, 1) be a point on the plane which passes through the point (4, $-$2, 2). If the plane is perpendicular to the line joining the points ($-$2, $-$21, 29) and ($-$1, $-$16, 23), then ${\left( {{\lambda \over {11}}} \right)^2} - {{4\lambda } \over {11}} - 4$ is equal to __________.