11.O’xshash hadlarni ixchamlang: 2y+3x-7y +6x+3x+10y-10x=?
A)2y-5x B)8xy C)15y+2x D)5y+2x
12.Ko’paytirishni bajaring: -2c(4b-3c)=?
A)-6c-8cb B)-8bc+6c2 C)-8bc-6c2 D)8bc+6c
13.Qo’shni burchaklardan biri ikkinchisidan 2 marta katta bo’lsa, shu burcahklarni toping?
A)600; 1200 B) 700; 1100 C) 500; 1000 D) 900; 1800
14. Algebraik kasrlarni qo’shish amali qaysi javobda to’g’ri keltirilgan?
A. 2ab+3ab=5a2b2 B. 2ab+3ab=5ab C. 2ab+3ab=5(a+b) D. 2ab+3ab=6ab
15Ko’phadlarni ko’paytiring. (3x+2)(x-3)
A. 3x2 + 2x - 6 B.3x2 - 7x – 6 C. 3x2 + x – 15 D. 3x2 + 2x – 3
16. Hisoblang 2, 18 – ( 1, 45 – 4, 8 – 0, 25) =
A. 4,54 B. 8, 4 C. 5, 78 D.- 6,25
17. Onasi 48 yoshda, qizi esa 18 yoshda. Necha yil oldin qizi onasidan 3 marta yosh bo’lgan?
A. 6 B. 3 C. 5 D. 2
18. Teng yonli uchburchakning ikki tomoni 8 va 3 ga teng, uning uchinchi tomonini toping.
A. 6 B. 3 C. 8 D. 10
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