Like

Report

Use Newton's method with initial approximation $ x_1 = -1 $ to find $ x_2 $, the second approximation to the root of the equation $ x^3 + x + 3 = 0 $. Explain how the method works by first graphing the function and its tangent line at $ (-1, 1) $.

$$

x_{2}=-1.25

$$

You must be signed in to discuss.

Missouri State University

Harvey Mudd College

Baylor University

Idaho State University

The first thing we can do is we can find the derivative of the equation being given, which gives us three X squared plus one. Now we know, except to is Axl Juan minus F of X one over prime of X one, which gives us negative 1.25 now to Graff. As we can see, this gives us our next approximation and then drawing the Tangela excess negative 1.25 We know x two is negative. 1.25