1. 18у^3 - 36у^2 = 0 2. (x^2 - 10)^2 - 3(x^2 - 10) - 4 = 0. 3. 16x^3 - 32x^2 - x + 2 = 0. 4. x^2/27 + x/3 = (x + 9)/3 5. ...