Quotient, remainder and polynomial equation
1)Find the quotient,q(x) , and the remainder,r(x) , when 5x^3-20x^2+23x-5 is divided by x^2-3x+3. q(x)= r(x)= 2)Find the remainder when x^3-3x^2-6 is divided by x-3. 3)Solve the polynomial equation x^3-2x^2+3x-6=0 given that x=2 is one solution. The SUM of all the real solutions is_______