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A. Use the three methods of solving nonlinear equations to find the solutions of these systems of nonlinear equations. onlinear Equations Elimination method Substitution Graphing methodion 1 . [ x 2 + y 2 = 100 Y = 3 2 . 5 - x 2 - 3 x + y = 0 - 12 x 2 - 3 x ty = 0 [ y 2 - 3 x 2 = 12 Y = - 3x 4. 5 x 2 + 3 y 2 = 63 (3 y - X = 3 5 . 5- 9 x + 3 y = 12 x 2 + y = 2 ".5 2 x2 - xy ty 2 =8 x 2 = y 2 1.5 12 2- 18v-54:0 12 4 2 - 3 y - 9=0 B. Solve the systems of nonlinear equations,, using any method of your choice. 2 . 5 2 x 2 + 3 y 2 + 3 x - 12y- 42=0 1. 7 2 x2 + y 2 = 18 x + 3y = 0 xy = 4