15-04-2018
Mathematics

contestada

what is the multiplicity of the root 2 in the equation x^3-8x^2+20x-16=0?

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Riuga1000 Riuga1000

15-04-2018

Factoring the cubic you get: (x - 2)^2 (x-4) , so we know the multiplicity is the amount of times a root shows in an equation because the equation (x-2) has a exponent of 2 that means the root 2 has a multiplicity of 2.
Answer: 2

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