x^2 +x^-2.....evaluate at x-(1/x)=3...x^2-1=3x...x^2-3x-1=0 . . . yuze quadratik equashun on x^2-3x-1=0... x=3.3027756 or -0.3027756 . . . at x=3.302..., x^2=10.90832666 . . . 1/x^2=0.091673088 . . . x^2+x^-2=10.9999999975... me ges that spozed tu be 11