Use Newton's method to find the first 5 approximations of the solution to the equation LaTeX:  \displaystyle e^{- x}= \frac{x^{3}}{125} - 4 using LaTeX:  \displaystyle x_0=7 .

Using the formula for Newton's method gives LaTeX:  x_{n+1} =  x_{n} - \frac{- \frac{x_{n}^{3}}{125} + 4 + e^{- x_{n}}}{- \frac{3 x_{n}^{2}}{125} - e^{- x_{n}}}   Using LaTeX:  \displaystyle x_0 = 7 and LaTeX:  \displaystyle n = 0,1,2,3, and LaTeX:  \displaystyle 4 gives: LaTeX:  x_{1} =  (7.0000000000) - \frac{- \frac{(7.0000000000)^{3}}{125} + 4 + e^{- (7.0000000000)}}{- \frac{3 (7.0000000000)^{2}}{125} - e^{- (7.0000000000)}} = 8.0679745028 LaTeX:  x_{2} =  (8.0679745028) - \frac{- \frac{(8.0679745028)^{3}}{125} + 4 + e^{- (8.0679745028)}}{- \frac{3 (8.0679745028)^{2}}{125} - e^{- (8.0679745028)}} = 7.9393462387 LaTeX:  x_{3} =  (7.9393462387) - \frac{- \frac{(7.9393462387)^{3}}{125} + 4 + e^{- (7.9393462387)}}{- \frac{3 (7.9393462387)^{2}}{125} - e^{- (7.9393462387)}} = 7.9372420619 LaTeX:  x_{4} =  (7.9372420619) - \frac{- \frac{(7.9372420619)^{3}}{125} + 4 + e^{- (7.9372420619)}}{- \frac{3 (7.9372420619)^{2}}{125} - e^{- (7.9372420619)}} = 7.9372415047 LaTeX:  x_{5} =  (7.9372415047) - \frac{- \frac{(7.9372415047)^{3}}{125} + 4 + e^{- (7.9372415047)}}{- \frac{3 (7.9372415047)^{2}}{125} - e^{- (7.9372415047)}} = 7.9372415047