Please Solve As soon as Solve quickly I get you thumbs up directly Thank's Abdul-Rahim Taysir

Problem 4 The total heating costs for a building can be calculated as the following: (86400)(H)()(P) Total Cost = (I * *) + (Rew +L) where x is the thermal insulation thickness in meter, I is insulation purchasing and installation costs = 171.43 $/m, H is the heating degree days = 500 K.day, Cf is the fuel cost = 1.36 $/kg, P is an economic factor = 6.5, Row is the wall thermal resistance = 0.5 mK/W, k is the thermal conductivity = 0.019 W/m. K, L is the fuel lower heating value = 42 x 10J/kg, and y is the heating system thermal efficiency = 0.7. Use the Newton's method to optimize the total cost