Asked by gazender
x^4+16x^2+7x-11=0 Descartes’ rule of signs to find the nature of the roots of the equation
Answers
Answered by
Reiny
I would suggest you print out and study this example
http://www.purplemath.com/modules/drofsign.htm
http://www.purplemath.com/modules/drofsign.htm
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