#6.5 contd

• (13-18) all
• 28 (hint: there are 32 possibilities!)
• hint #2: one of the roots is between 0 and 1

And for Glenn in 2nd hour only:

• find the roots for x^3 - 3x^2 +4x -12 = 0
• this problem is x to the 3rd power - 3 x to the 2nd power plus 4x - 12 = 0