2x^4+3x^3-4x^2-3x+2=0 Solve using Newton Raphson method

Q252 While Thinking Like An Economist, For The List Of Products Below Explain Which Of The Four Different Market Structures Best Describes The Market, I.E., Match The Product With The Various Four Markets Structures That Have Been Identified In This Lesson. Provide A Response For Every Product. (A) Tennis Shoes (B) Wheat (C) Cable Television (D) Video Gaming