$$\lim_{y \to 3^-}\left(x^{2} y^{2}\right) = 9 x^{2}$$ More at y→3 from the left $$\lim_{y \to 3^+}\left(x^{2} y^{2}\right) = 9 x^{2}$$ $$\lim_{y \to \infty}\left(x^{2} y^{2}\right) = \infty \operatorname{sign}{\left(x^{2} \right)}$$ More at y→oo $$\lim_{y \to 0^-}\left(x^{2} y^{2}\right) = 0$$ More at y→0 from the left $$\lim_{y \to 0^+}\left(x^{2} y^{2}\right) = 0$$ More at y→0 from the right $$\lim_{y \to 1^-}\left(x^{2} y^{2}\right) = x^{2}$$ More at y→1 from the left $$\lim_{y \to 1^+}\left(x^{2} y^{2}\right) = x^{2}$$ More at y→1 from the right $$\lim_{y \to -\infty}\left(x^{2} y^{2}\right) = \infty \operatorname{sign}{\left(x^{2} \right)}$$ More at y→-oo