Find the X-Intercepts of the Polynomial Function $$f ( x ) = x ^ { 4 } - 36 x ^ { 2 }$$

Multiple Choice

Find the x-intercepts of the polynomial function. State whether the graph crosses the x-axis, or touches the x-axis and
turns around, at each intercept.
- $$f ( x ) = x ^ { 4 } - 36 x ^ { 2 }$$

A) 0 , touches the $x$ -axis and turns around;
36 , touches the $x$ -axis and turns around
B) 0 , crosses the $x$ -axis;
6, crosses the $x$ -axis;
$- 6$ , crosses the $x$ -axis
C) 0 , touches the $x$ -axis and turns around;
6 , crosses the $x$ -axis;
$- 6$ , crosses the $x$ -axis
D) 0 , touches the $x$ -axis and turns around;
36 , crosses the $x$ -axis