Use Descartes' Rule of Signs to Determine the Possible Number $$f ( x ) = 2 x ^ { 8 } + 4 x ^ { 6 } + 2 x ^ { 4 } + 7 x ^ { 2 } + 2$$

question 183

Multiple Choice

Use Descartes' Rule of Signs to determine the possible number of positive real zeros and the possible number of negative real zeros for the function.
- $$f ( x ) = 2 x ^ { 8 } + 4 x ^ { 6 } + 2 x ^ { 4 } + 7 x ^ { 2 } + 2$$

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