?Find the Zeros of the Function Algebraically $$f ( x ) = 9 x ^ { 2 } + 21 x - 18$$

Multiple Choice

?Find the zeros of the function algebraically.? $$f ( x ) = 9 x ^ { 2 } + 21 x - 18$$ ?

A) ? $x = \frac { 2 } { 3 } , - 3$
B) ? $x = - \frac { 2 } { 3 } , - 3$
C) ? $x = \frac { 3 } { 2 } , - 3$
D) ? $x = \frac { 2 } { 3 } , 3$
E) ? $x = - \frac { 2 } { 3 } , 3$