$$x_{1} = - \sqrt{2} \sqrt{\frac{1}{y}}$$
=
$$- \sqrt{2} \sqrt{\frac{1}{y}}$$
=
-1.4142135623731*(1/y)^0.5
$$x_{51} = - 18 y$$
=
$$- 18 y$$
=
-18*y
$$x_{2} = \sqrt{2} \sqrt{\frac{1}{y}}$$
=
$$\sqrt{2} \sqrt{\frac{1}{y}}$$
=
1.4142135623731*(1/y)^0.5
$$x_{52} = - 18 y$$
=
$$- 18 y$$
=
-18*y