\(-170 = x^4 -29x^2 +10\)
\( x^4 -29x^2 +180=0\)
\( x^4 -29x^2 =-180\)
\( x^4 -29x^2+(\frac{29}{2})^2 =-180+(\frac{29}{2})^2\)
\( (x^2-\frac{29}{2})^2 =-180+(\frac{29}{2})^2=30,25 | ±\sqrt{~~}\)
1.)
\( x^2-14,5 =5,5 \)
\( x^2=20 |±\sqrt{~~} \)
\( x_1=\sqrt{20} \)
\( x_2=-\sqrt{20} \)
2.)
\( x^2-14,5 =-5,5 \)
\(x^2=9 | ±\sqrt{~~} \)
\(x_3=3\)
\(x_4=-3\)