Question

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The quadratic equation x^2+2x−8=0 can be rewritten as (x+4)(x−2)=0.

What is the multiplicity of the root x=−4?

A.The multiplicity of the root is 1.
B.The multiplicity of the root is 3.
C.The multiplicity of the root is 2.
D.The multiplicity of the root is 4.

Answer 1

Answer:

A.The multiplicity of the root is 1.

Step-by-step explanation:

Multiplicity is the number of factors for that root.

For x = -4, the factor is (x + 4) which appears only once