Use Newton's method to approximate a root of the equation x³ + x + 3 = 0 as follows. Let x₁ = -1 be the initial approximation. The second approximation ₂ is and the third approximation x3 is 2014 5 74 X (Although these are approximations of the root, enter exact expressions for each approximation.)

Advanced Engineering Mathematics
10th Edition
ISBN:9780470458365
Author:Erwin Kreyszig
Publisher:Erwin Kreyszig
Chapter2: Second-order Linear Odes
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Use Newton's method to approximate a root of the equation \( x^3 + x + 3 = 0 \) as follows. Let \( x_1 = -1 \) be the initial approximation.

The second approximation \( x_2 \) is \(\frac{-5}{4}\) ✔

and the third approximation \( x_3 \) is \(\frac{-7}{4}\) ✖

(Although these are approximations of the root, enter exact expressions for each approximation.)
Transcribed Image Text:Use Newton's method to approximate a root of the equation \( x^3 + x + 3 = 0 \) as follows. Let \( x_1 = -1 \) be the initial approximation. The second approximation \( x_2 \) is \(\frac{-5}{4}\) ✔ and the third approximation \( x_3 \) is \(\frac{-7}{4}\) ✖ (Although these are approximations of the root, enter exact expressions for each approximation.)
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