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BARSIC [14]
3 years ago
11

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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