I need help figuring out how to solve some problems. Simplify/Reduce 6x2+x-2/2x2+x-1. Simplfiy (add/subtract) x+3/x2-6x+9-x+2/x2-9-5/x-3. (3-4i)(3+4i)
12x2y3/2xy2+6xy*y2+6y+9/3y