Question

29) PLEASE HELP WITH QUESTION. MARKING BRAINLIEST + POINTS GIVEN.

Answer 1

 $x^{4} -32 x^{2} -144$ will factor into the following
$( x^{2} +4)( x^{2} -36)$
Set each factor equal to 0:
$x^{2} +4=0$ or $x^{2} -36=0$
$x^{2} =-4$         $x^{2} =36$
x = +/- 2i                         x = +/- 6

Answer: 2i, 6, -6