Question 1174743
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Hi
3x⁴+2x²+3=2x⁴-2x²+8
 x^4 + 4x^2 -5 = 0      | Let X = x^2
 X^2 + 4X - 5 = 0
 (X + 5)(X - 1) = 0
     X = -5   0r  X = 1 
   x^2 = -5    and x = ± i√5
0r x^2 = 1  and x = ± 1 
 Two real and two imaginary roots
Recommend the FREE graph software  
https://www.padowan.dk/download/ 
{{{drawing(300,300,   -6, 6, -6, 6, grid(1), 
circle(-1,0,0.2),

circle(1,0, 0.2),

graph( 300, 300, -6, 6, -6, 6,0, x^4 + 4x^2 -5 )) }}}

Wish You the Best in your Studies.
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