1. Tengsizlikni yeching: x² –5x+6>0
A) x<2, x>3
B) x>1, x>3
C) x<0, x>3
D) x>1, x<5
E) x<3, x>5

2. x²<3x+4 tengsizlikni kvadrat tengsizlikka keltiring:
A) x²–3x+4<0
B) x²–3x-4<0
C) x²–3x+4>0
D) x²–3x-4>0
E) x²+3x+4<0

3. x²+6x+5<0 tengsizlikni barcha butun yechimlari yig'indisini toping:
A) 10
B) 9
C) -9
D) -10
E) -15

4. a ning qanday qiymatida ax²-8x-2<0 tengsizlik x ning barcha qiymatlarida o'rinli bo'ladi:
A) a=8
B) a>8
C) a<8
D) a<-8
E) a>-8

5. p ning nechta butun qiymatida x²+px+9=0 tenglama haqiqiy ildizga ega emas:
A) 10
B) 8
C) 13
D) 12
E) 11