DangeRz DangeRz 30-01-2019 Mathematics contestada Hi! I have a couple of questions... How do I simplify these...? 1. (2x - 3xy)(x - 3y) - (x - 2xy) = 2. (3t^2)^3/t = 3. x^7y^-2z^4/x^-3y^2z^3 = 4. x+1/x2 • x/x2-1 = 5. 2x+4/2 + x/x2 =