| x 2 − 7 x + 2 | > 10 {\displaystyle \ |x^{2}-7x+2|>10} x 2 − 7 x + 2 > 10 {\displaystyle \ x^{2}-7x+2>10} או x 2 − 7 x + 2 < − 10 {\displaystyle \ x^{2}-7x+2<-10}
x 2 − 7 x + 2 < − 10 x 2 − x + 12 < 0 ( x − 4 ) ( x − 3 ) < 0 ( x − 4 ) ( x − 3 ) = 0 ↓ 3 < x < 4 {\displaystyle {\begin{aligned}&x^{2}-7x+2<-10\\&x^{2}-x+12<0\\&(x-4)(x-3)<0\\&(x-4)(x-3)=0\\&\downarrow \\&3<x<4\\\end{aligned}}}
x < − 1 ; x > 8 ; 3 < x < 4 {\displaystyle {\begin{aligned}x<-1;x>8;3<x<4\end{aligned}}}