1003028806

Level: 
Project ID: 
1003028806
Accepted: 
1
Find all the real roots of the equation. \[ \left(x^4-1\right)\left(x^3-8\right)\left(x^2-2\right)=0 \]
\( \left\{-\sqrt2,-1,1,\sqrt2,2\right\} \)
\( \left\{-2,-1,1,2\right\} \)
\( \left\{-\sqrt2,-1,1,\sqrt2\right\} \)
\( \left\{-\sqrt2,\sqrt2,2\right\} \)