5. Obtén los productos. a 2x2-3x3+2x2-6x+4 b -x2y2x4-y4+z2-x2y2+y2z2 c -a6+3a5-2a4+3a2+7a-6-2a2 d 16/3 ab2 9/8 a2- 6/5 b2+ 3/8 ab- 3/2 c e 0,6s2t2 5/2 st- 1/6 s-4+ 15/2 t-6 f square root of 2ax-1 square root of 3ax+2-2 square root of 2a-x-1- square root of 2ax+1