Quadratic Equation x = - b ± b 2 - 4 a c 2 a DisplayQuadratic Equation x = - b ± b 2 - 4 a c 2 a Rational Function f ( x ) = 1 - x 2 1 - x 3 Rational Function f ( x ) = ( 1 - x 2 ) x 3 1 - x 3 Rational Function f ( x ) = ( 1 - x 2 ) ( x 3 - 5 x ) 1 - x 3 Parametrize Rational Function f ( x ) = ( 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 - z i 2 i = 0 ∞ Stacked exponents g ( y ) = e - y i 2 i = 0 ∞ Stacked exponents g ( z ) = e - z 2 a - i i = 0 ∞ Cross Product x 1 - x 2 x 3 - x 4 x 1 - x 4 x 2 - x 3 Cross Product ( x 1 - x 2 x 3 - x 4 ) ( x 1 - x 4 x 2 - x 3 ) Cross Product x 1 - x 2 x 3 - x 4 x 1 - x 4 x 2 - x 3 Cross Product ( x 1 - x 2 ) ( x 3 - x 4 ) ( x 1 - x 4 ) ( x 2 - x 3 )