Use Newton's method to find the first 5 approximations of the solution to the equation LaTeX:  \displaystyle e^{- x}= \frac{18 x^{3}}{25} - 4 using LaTeX:  \displaystyle x_0=1 .

Using the formula for Newton's method gives LaTeX:  x_{n+1} =  x_{n} - \frac{- \frac{18 x_{n}^{3}}{25} + 4 + e^{- x_{n}}}{- \frac{54 x_{n}^{2}}{25} - e^{- x_{n}}}   Using LaTeX:  \displaystyle x_0 = 1 and LaTeX:  \displaystyle n = 0,1,2,3, and LaTeX:  \displaystyle 4 gives: LaTeX:  x_{1} =  (1.0000000000) - \frac{- \frac{18 (1.0000000000)^{3}}{25} + 4 + e^{- (1.0000000000)}}{- \frac{54 (1.0000000000)^{2}}{25} - e^{- (1.0000000000)}} = 2.4430591039 LaTeX:  x_{2} =  (2.4430591039) - \frac{- \frac{18 (2.4430591039)^{3}}{25} + 4 + e^{- (2.4430591039)}}{- \frac{54 (2.4430591039)^{2}}{25} - e^{- (2.4430591039)}} = 1.9490449205 LaTeX:  x_{3} =  (1.9490449205) - \frac{- \frac{18 (1.9490449205)^{3}}{25} + 4 + e^{- (1.9490449205)}}{- \frac{54 (1.9490449205)^{2}}{25} - e^{- (1.9490449205)}} = 1.8066763736 LaTeX:  x_{4} =  (1.8066763736) - \frac{- \frac{18 (1.8066763736)^{3}}{25} + 4 + e^{- (1.8066763736)}}{- \frac{54 (1.8066763736)^{2}}{25} - e^{- (1.8066763736)}} = 1.7953467971 LaTeX:  x_{5} =  (1.7953467971) - \frac{- \frac{18 (1.7953467971)^{3}}{25} + 4 + e^{- (1.7953467971)}}{- \frac{54 (1.7953467971)^{2}}{25} - e^{- (1.7953467971)}} = 1.7952781574