For the equation 2x^3 -11x^2 + 12x + 9 = 0 , the root of 3 has a multiplicity of

Mathematics

1 answer:

Kobotan [32]3 years ago

3 0

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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