Y mul div c c mul pow x1 c mul sqrt mul x1 pow add x1 mul sqrt mul x1 sqrt x1 add x1 x2 c mul pow add x1 mul sqrt mul x1 sqrt x1 add x1 x2 c add mul c mul sqrt mul x1 sqrt x1 add x1 x2 mul c mul x1 add c sqrt mul x1 sqrt x1