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kalii
kalii asks:
Q:

how many possible rational zeros does x^4-2x^3+4x-6 have?

In Topics: Helping my child with math
> 60 days ago

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Answers (1)

graham
graham writes:
As a fourth order exponent, there can at most be 4 zeros. However this equation does not have integer (whole number) zero's. The roots are -1.51 and 1.80. I'm unsure how you would get this without a graphing calculator. You cannot get the roots using the rational root theorem because the constant (-6) is negative. This polynomial does not factor either.
> 60 days ago

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