cloeybrown
17.07.2019 •
Mathematics
=9x4 − 82x2 + 9 (a) use descartes's rule of signs to determine the possible numbers of positive real zeros of f.
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Ответ:
_____
A graph tells you there are 2 positive and 2 negative real roots.
Ответ:
He made an error in step 2 because you are supposed to do the inverse operations on the -3 which would be +3.