Determine the real roots and state their multiplicity and consequent crossing of the x-axis of (9x-81)(x-9)-0. (2 marks for the roots; 2 marks for multiplicity and how the curve will cross the x-axis) Completely factor P(x)=x-13x +12. Begin with listing the test factors. The solution must include synthetic division. (5 marks) Determine the value of k such that when f(x)=x-4x + kx +10 is divided by (x - 3), the remainder is -2. (3 marks)