8-sinf test Tеngsizlikni yeching

.(x²+5x+4)(x ² +5x+6) =120 tenglamaning haqiqiy yechimlarini toping. А)3 В)2 С)-3 D)-5

Trapetsiyaning yuzi 594 ga,balandligi 22 ga asoslari ayirmasi 6 ga teng. Trapetsiyaning katta asosini uzunligini toping . А)34 В)28 С)32 D)30

 ni hisoblang. А)2 В)3 С)3.2 D)2.5

Agar a+b+c=0 bo`lsa ,a³+a²c-abc+b²c+b³ ifodaning qiymatini toping. А)0 В)2 С)1 D)-1

x⁴-13x²+36=0 tenglamani ildizlar yig`indisini toping. А)2 В)0 С)3 D).5

Agar m>n>k>0 bo`lsa, ni soddalashtiring. А)2m-2k В)2k С)2n-2m D)2n

x²+ -2=0 tenglamani ildizlarini toping. А)2 В)0 С)3 D)-2

Ustalar reja bo`yicha 40 ta beshik tayyorlashlari kerak. Ular rejani 10 % dan ko`proq oshirib bajarishlari uchun nechta beshik tayorlashlari kerak?

А)50 В)60 С)44 D)42

47.