−v2u5 + vu5−v3u4 + 5v2u4−5vu4 + u4 + 2v3u3−10v2u3 + 10vu3−2u3−2v3u2 + 10v2u2−10vu2 + 2u2 + v3u−5v2u + 5vu−u + v2−v