Question

1. теңсіздік
шешіңдер.
а) (х + 4)(х + 1)(х – 3) > 0;
ә) (х – 5)(х – 7)(х + 3) < 0;
б) (х + 9)(х – 8)(10 – x) > 0;
в) (12 + х)(6 – x)(х – 11) < 0.​