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[" 9.Given that the cubic "ax^(3)-ax^(2)...

[" 9.Given that the cubic "ax^(3)-ax^(2)+9bx-b=0(a!=0)" has all three positive roots.Find the "],[" the roots independent of a and "b" ,hence deduce that the root are all equal.Find also th "],[(a+b)" if "a" and "b in N" ."]

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