(x [LeftAngleBracket]x (-x +
!(*UnderscriptBox[([Sum]), (j)])Derivative[1][v][
        y[j]])[RightAngleBracket])/[LeftAngleBracket]x^2
[RightAngleBracket] +
!(*UnderscriptBox[([Sum]), (j)])Derivative[1][v][y[j]]