მასწავლებლის წიგნი

d) mocemuli utoloba tolfasia x(x+5)x–5 ≥0utolobis.pasuxi: x∈[–5;0]∪(5; +∞).24 a), b), g) da d) utolobebi amoixsnas klasSi. maTi marcxena nawilebi erTnairiada es umartivebs moswavles amonaxsnTa simravlisTvis x=5 wertilis mikuTvnebissakiTxSi garkvevas. oTxive utolobisTvis SeiZleba erTi RerZi gakeTdes, saTanadointervalebTan erTad mivuTiToT marcxena mxaris gamosaxulebis niSnebi da amovxsnaTutolobebi. TiToeul SemTxvevaSi aucileblad Semowmdes yvela sasazRvro wertili:a) (–∞; –3]∪[4; +∞),b) (–∞; –3)∪(4; 5)∪(5; +∞),+ – + +g) (–3; 4),d) [–3; 4]∪{5}.e), v), z) da T) utolobebis marcxena mxare gadavweroT (x–3)(x+1) 2 (x+9) saxiT (3da –1 aris x 2 –2x–3 kvadratuli samwevris fesvebi) da amovxsnaT utolobebi a)_d)utolobebis msgavsad.25 a) x-is nebismieri mniSvnelobisTvis x 2 +4x+5>0 (x 2 -is koeficienti dadebiTia,D0 utolobis. vpoulobT fesvebs: x 1=–4, x 2=–1da vRebulobT: (x+1)(x+4)>0, saidanac intervalTa meTodiT davadgenT amonaxsnTasimravles:(–∞; –4)∪(–1; +∞),b) amovxsnaT (x–6)(x+6) 0, x(x+4)(x+1)(x–2) 0,41