For the equation 2x^3 -11x^2 + 12x + 9 = 0 , the root of 3 has a multiplicity of
1 answer:
Answer: 2
Reason:
2x^3 - 11x^2 + 12x + 9
= 2x^2(x-3) - 5x(x-3) -3(x-3)
= (x-3)(2x^2 - 5x - 3)
= (x-3)^2 (2x + 1)
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