Solve x4 – 17x2 + 16 = 0.

x = ±1, x = ±4

x = ±1, x = ±2

x = ±1, x = ±4i

x = ±1, x = ±2i
would this be A @igreen

Question

Solve x4 – 17x2 + 16 = 0.
	
x = ±1, x = ±4
 	
x = ±1, x = ±2
 	
x = ±1, x = ±4i
 	
x = ±1, x = ±2i
would this be A @igreen

18jonea · Answer

@Luigi0210

xmissalycatx · Answer

What you should do for this is write out what you have.. 

Let's say you want to test your first answer choice (A)..

You would have--
x=1 
x=-1
x=4
x=-4

Sp plug those into any place where it says "x" and solve to see if it is true. :)

18jonea · Answer

it is true @xMissAlyCatx

xmissalycatx · Answer

Plug in the numbers to find out.. If it isn't true then test the second answer choice until you find the right one.