Solve the following system of nonlinear equations: -2x^3+3y^2+42=0 5x^2+3y^3+69=0 Use Newton's method. Start at x=1, y=1, and carry out the first five iterations. Use the fixed-point iteration method. Use the iteration functions y=(-5x^2+69/3)^1/2 and x=(3y^2+42/2)^1/3. Start at x=1, y=1, and carry out the first five iterations.