Asked by ladybug
                what does Descartes rule of signs tell you about the possible number of positive real number zeros and the possible number of negative real zeros of the function?
1. f(x)=2x^5-5x^2+x-1
2. f(x)=5x^6+7x^4-x-6
please show work
            
        1. f(x)=2x^5-5x^2+x-1
2. f(x)=5x^6+7x^4-x-6
please show work
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