How to use newton-rhapson to solve like these equation ?

(1) x^5+15x+12=0

(2)x^5+330x-4170=0

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- April 26th 2012, 11:13 PMMhmh96Fifth degree equation
How to use newton-rhapson to solve like these equation ?

(1) x^5+15x+12=0

(2)x^5+330x-4170=0 - April 26th 2012, 11:23 PMProve ItRe: Fifth degree equation
Choose a suitable starting value , then

- April 26th 2012, 11:38 PMbiffboyRe: Fifth degree equation
For no.1 Expression is negative when x=-1 and positive when x=0 so choose a starting value between -1 and 0