4 2 8*x - 14*x - 3
8*x^4 - 14*x^2 - 3
/ ______________\ / ______________\ / ____________\ / ____________\ | / ____ | | / ____ | | / ____ | | / ____ | | / 7 \/ 73 | | / 7 \/ 73 | | / 7 \/ 73 | | / 7 \/ 73 | |x + I* / - - + ------ |*|x - I* / - - + ------ |*|x + / - + ------ |*|x - / - + ------ | \ \/ 8 8 / \ \/ 8 8 / \ \/ 8 8 / \ \/ 8 8 /
(((x + i*sqrt(-7/8 + sqrt(73)/8))*(x - i*sqrt(-7/8 + sqrt(73)/8)))*(x + sqrt(7/8 + sqrt(73)/8)))*(x - sqrt(7/8 + sqrt(73)/8))
2 / 2\ -3 + 2*x *\-7 + 4*x /
-3 + 2*x^2*(-7 + 4*x^2)