robstone66rules robstone66rules

10-07-2020
Mathematics

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According to the Rational Root Theorem, which is not a possible solution of the
equation 2x4 - 5x3 + 10x2 - 9 = 0 ?

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sqdancefan sqdancefan

10-07-2020

Answer:

5/2

Step-by-step explanation:

Possible rational roots are ...

±(divisor of 9)/(divisor of 2)

So, the possibilities are ...

±1/2, ±1, ±3/2, ±3, ±9/2, ±9

The one on your list that is not among these is 5/2.

5/2 is not a possible rational root.

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