ii chorak. 7 sinf 4-bsb algebra umumtalim ii variant

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sinf _______ ismi, familiyasi _____________________ sana _____ 7 sinf algebradan 4 – bsb savollari ii variant 1.ikkihad yig‘indisining kubi shaklida yozing: (5 ball) 64𝑥3 − 48𝑥2 + 12𝑥 − 1 javob: _______________________________________________ 2. ifodani soddalashtiring: (5 ball) (2𝑥 − 3)3 − (2𝑥 + 3)3 javob: _______________________________________________ 3.ko‘phadni ko‘paytiruvchilarga ajrating. (5 ball) 8𝑎2 + 12𝑎𝑏 + 10𝑎𝑐 + 15𝑏𝑐 javob: _______________________________________________ 4. tenglamani yeching: (5 ball) (2𝑥 − 3)(9 + 6𝑥 + 4𝑥2) = 8𝑥3 + 27𝑥 javob: _______________________________________________ 5. hisoblang: (5 ball) 513 − 493 51 − 49 + 51 ∙ 49 javob: _______________________________________________ o‘quvchining to‘plagan balli: __________ tekshiruvchi o‘qituvchi: _________________ ___________ (imzo) baholash mezoni № ball javob deskriptor 1 5 (4𝑥 − 1)3 1) 64𝑥3 − 48𝑥2 + 12𝑥 − 1 = (4𝑥)3 + 3(4𝑥)2 ∙ 1 + 3 ∙ 4𝑥 ∙ (1)2 − (1)3 formulaga keltirsa, 2 ball 2) (4𝑥)3 + 3(4𝑥)2 ∙ 1 + 3 ∙ 4𝑥 …

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ll 3) 512 + 51 ∙ 49 + 492 + 51 ∙ 49 = (51 + 49)2 = 10000 ifodaning qiymatini topsa, 5 ball jami: 25 ball

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sinf _______ ismi, familiyasi _____________________ sana _____ 7 sinf algebradan 4 – bsb savollari ii variant 1.ikkihad yig‘indisining kubi shaklida yozing: (5 ball) 64𝑥3 − 48𝑥2 + 12𝑥 − 1 javob: _______________________________________________ 2. ifodani soddalashtiring: (5 ball) (2𝑥 − 3)3 − (2𝑥 + 3)3 javob: _______________________________________________ 3.ko‘phadni ko‘paytiruvchilarga ajrating. (5 ball) 8𝑎2 + 12𝑎𝑏 + 10𝑎𝑐 + 15𝑏𝑐 javob: _______________________________________________ 4. tenglamani yeching: (5 ball) (2𝑥 − 3)(9 + 6𝑥 + 4𝑥2) = 8𝑥3 + 27𝑥 javob: _______________________________________________ 5. hisoblang: (5 ball) 513 − 493 51 − 49 + 51 ∙ 49 javob: _______________________________________________ o‘quvchining to‘plagan balli: __________ tekshiruvchi o‘qituvchi: _________________ ...

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