1.
2×rad2/2 - 1/2 + 3×rad3/3 + 1/2 =
rad2 - 1/2 + rad3 + 1/2 =
rad2 + rad3
2.
rad3/2 × rad2/2 - 2×rad2/2 × 1/2 + rad2/2 =
rad6/4 - rad2/2 + rad2/2 =
rad6/4
3.
rad3 - rad3/2 - 1/2 =
(2rad3 - rad3 - 1)/2 =
(rad3 - 1)/2
4.
rad3/2 - rad3/2 × rad3/3 =
rad3/2 - 3/6 =
rad3/2 - 1/2 =
(rad3 - 1)/2