Applying Eisenstein's criterion to verify if a polynomial is irreducible or not. For example: x^3+4x^2+3 We choose p=3. We can't apply Eisenstein's criterion on this polynomial because the non-leading coefficient 4 is not divisble by p. But if we have for example: x^3+6x^2+3 we could apply the criterion because the non-leading coefficients 3 and 6 are divisible by p. Is this correct?

Advanced Engineering Mathematics
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ISBN:9780470458365
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Chapter2: Second-order Linear Odes
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Applying Eisenstein's criterion to verify if a polynomial is irreducible or not.

For example: x^3+4x^2+3

We choose p=3.
We can't apply Eisenstein's criterion on this polynomial because the non-leading coefficient 4 is not divisble by p.

But if we have for example: x^3+6x^2+3 we could apply the criterion because the non-leading coefficients 3 and 6 are divisible by p.

Is this correct?

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Step 1

Yes it is correct

 

For example: x^3+4x^2+3

 

We choose p=3.

We can't apply Eisenstein's criterion on this polynomial because the non-leading coefficient 4 is not divisble by p.

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