\begin{matrix} Quadratic Equation & x = \frac{- b \pm \sqrt{b_{}^{2} - 4 a c}}{2 a} \\ DisplayQuadratic Equation & x = \frac{- b \pm \sqrt{b_{}^{2} - 4 a c}}{2 a} \\ Rational Function & f (x) = \frac{1 - x_{}^{2}}{1 - x_{}^{3}} \\ Rational Function & f (x) = \frac{(1 - x_{}^{2}) x_{}^{3}}{1 - x_{}^{3}} \\ Rational Function & f (x) = \frac{(1 - x_{}^{2}) (x_{}^{3} - 5 x)}{1 - x_{}^{3}} \\ Parametrize Rational Function & f (x) = \frac{(a_{i}^{} - x_{}^{2})_{}^{5}}{1 - x_{}^{3}} \\ Stacked exponents & g (z) = e_{}^{- x_{}^{2}} \\ Stacked exponents & g (z) = e_{}^{- (z - a)_{}^{2}} \\ Stacked exponents & g (z) = e_{}^{- \sum_{i = 0}^{\infty} z_{i}^{2}} \\ Stacked exponents & g (y) = e_{}^{- \sum_{i = 0}^{\infty} y_{i}^{2}} \\ Stacked exponents & g (z) = e_{}^{- \sum_{i = 0}^{\infty} z_{}^{\frac{2}{a - i}}} \\ Cross Product & \frac{x_{1}^{} - x_{2}^{}}{x_{3}^{} - x_{4}^{}} \frac{x_{1}^{} - x_{4}^{}}{x_{2}^{} - x_{3}^{}} \\ Cross Product & (\frac{x_{1}^{} - x_{2}^{}}{x_{3}^{} - x_{4}^{}}) (\frac{x_{1}^{} - x_{4}^{}}{x_{2}^{} - x_{3}^{}}) \\ Cross Product & (\frac{x_{1}^{} - x_{2}^{}}{x_{3}^{} - x_{4}^{}}) (\frac{x_{1}^{} - x_{4}^{}}{x_{2}^{} - x_{3}^{}}) \\ Cross Product & \frac{(x_{1}^{} - x_{2}^{}) (x_{3}^{} - x_{4}^{})}{(x_{1}^{} - x_{4}^{}) (x_{2}^{} - x_{3}^{})} \end{matrix}