Solve the Equation $x ^ { 4 } - 37 x ^ { 2 } + 36 = 0$

Multiple Choice

Solve the equation $x ^ { 4 } - 37 x ^ { 2 } + 36 = 0$ . (Find all real and complex solutions.)

A) $\pm 1 , \pm 6 i$
B) $\pm 36$
C) $\pm 1 , \pm 36$
D) $\pm 1 , \pm 6$
E) $\pm 6 i$