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Why is it important to consider multiplicity when determining the roots of a polynomial equation?

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Answer:

It is important to consider multiplicity of root in factorization of polynomial equations.

Explanation:

We define multiplicity as:

  • The multiplicity of a root of a polynomial equation is the number of times it appears in the solution.
  • For example, the number of times a given polynomial equation has a root at a given point is the multiplicity of that root.
  • Thus, if we do not consider the multiplicity of a root we may consider the discrete root only and not the number of times the root repeats itself and end up calculating wrong roots for the polynomial equation.
  • Multiplicity tells us that how many times does a factor repeats itself in the factorization of a polynomial.
  • If r is a zero of a polynomial and it repeats itself k times in the factorization then we say that r has multiplicity k.
  • Zeroes with a multiplicity of 1 are often called simple zeroes.

Thus, it is important to consider multiplicity of root in factorization of polynomial equations.

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