# Use Newton's method to find the second and third approximation of a root of x3+x+3=0 starting with x1=−1 as the initial approximation.   The second approximation is x2 =   The third approximation is x3

Question

Use Newton's method to find the second and third approximation of a root of

x3+x+3=0

starting with x1=−1 as the initial approximation.

 The second approximation is x2 = The third approximation is x3 =