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Asked Nov 24, 2019
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#5 using Descartes's rule of signs 

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Expert Answer

Step 1

Given equation is,

x2x3 x-1= 0
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x2x3 x-1= 0

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Step 2

Descartes Rule: The number of positive real zeroes in a polynomial function f (x) is the same or less than by an even number as the number of changes in the sign of the coefficients.

Step 3

Given function is in descending powers of the variable. Now, the number of changes in sign for the coefficients of ...

1 2-1 +1
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1 2-1 +1

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