Which of the following represents the set of possible rational roots for the polynomial shown below 2x^3+5x^2-8x-20=0
2 answers:
Answer:
apex +/- 1/2 +/-1 +/-2 +/-5/2 +/-4 +/-5 +/-10 +/-20
Step-by-step explanation:
The questioner wants us to list all possible roots by applying the Rational Roots theorem
factors of constant term (-20) = +/- 1, +/-2, +/-5, +/-10, +/-20 WE call these factors p.
factors of leading coefficient (2) = +/- 1, +/-2 (call these q)
then possible roots are p/q = +/-1/1, +/- 1/2 , +/- 5/1 , +/- 5/2 and so on.
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