Use Newton's Method to find the root for the given function, letting
x_(0)
be your first guess. Find the next 3 values. Don't round too soon. I recommend using your calculator or Excel. Then use your calculator's "Find Zero" option to find that value. How close are you in 3 iterations?
,y=x^(3)+2x+4
x_(0)=-1
x_(1)=
x_(2)=
x_(3)=
Zero from Calculator:
?