Is there a shorter way to solve this?
Here’s how I did it: x6 - 9x2 - 8x4 =0, x2 (x4 - 8x2 -9)=0, x2 (x2 -9)(x2 +1)=0, x2 (x+3)(x-3)(x2 +1)=0 therefore, x=3 I just want a shorter way to solve this
Here’s how I did it: x6 - 9x2 - 8x4 =0, x2 (x4 - 8x2 -9)=0, x2 (x2 -9)(x2 +1)=0, x2 (x+3)(x-3)(x2 +1)=0 therefore, x=3 I just want a shorter way to solve this