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-1,0001,000
-1,0001,000
-1,0001,000
-1,0001,000
-1,0001,000
-1,0001,000

Max Possible Positive Real Roots

2

The number of sign changes in the coefficients, an upper bound on positive real roots (the actual count is this number or less, by an even number).

Max Possible Negative Real Roots

3

The number of sign changes after substituting -x for x, an upper bound on negative real roots (the actual count is this number or less, by an even number).

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