8-9 sinf matematikadan test

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8-sinf. matematikadan test 1. a = 2,4. b = 3,6, h = 1,6, bo’lsa, s = h/2 (a+b) ifodaning son qiymatini toping? a) 48; b) 3,18; c) 4, 8; d) 0,48; 2. a=5,1, b=4,7 bo’lsa, p= 2(a+b) ifodaning son qiymatini toping? a) 40; b) 19,6; c) 1,96; d) 36,1 3. qavslarni oching va soddalashtiring: 5a+(3a-(4a+3)). a) 8a+3; b) 4a-3; c) -4a-3; d) 3-4a; 4. 8(x+2)-5x=-2(x+4,5). a) -5; b) 5; c) 6; d) to’g’ri javob berilmagan. 5. 3(x+2) -2 (x+3)=7-5(x+1). a) -1/3; b) 1/3; c) -1; d) 2; 6. birhadning son qiymatini toping? 1/5a2b3c bunda a=-2, b=-1, c=10. a) -5/4; b) 5/4; c) -8; d) 8; 7.ko’phadni birhadga ko’paytiring: 4a-1/3x ∙ (-3x). a) -12ax-3x2; b) 3x2-12ax; c) 3x2+12ax; d) x2-12ax; 8.umumiy ko’paytuvchining qavsdan tashqariga chiqaring: 24a3b2-30a2b3. a) 6a2b2(4a-5b); b) 6ab(4a2b-10b2); c) 6a2(4ab2-5b3); d) 6b2(4a3-5a2); 9.ko’paytuvchilarga ajrating: 8a3-27b3. a) (2a-3b)2(2a+3b); b) (2a+3b)2 ∙(2a-3b); c) (2a)3-(3b)3; d) (2a-3b) (4a2+6ab+9b2); 10. y=kx+4 funksiya grafigi …

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c) 1,5; d) 210; 6. tenglamani yeching: a) x≤-5; b) x≥-5; c) x<5; d) x≥5; 7. tenglamani yeching: 3x2=48; a) x = 4; b) x = -4; c) x1,2=4; d) x=8; 8. tenglamani yeching; x2+9x=0 a) x1,2= -9; b) x1,2=3; c) x1=0, x2= -9 d) x1=0, x2=-9 9. kvadrat tenglamani yeching: x2+x-6=0. a) x1=-3, x2=2; b) x1=3, x2=-2; c) x1,2=6; d) x1=-1, x2=2; 10. kvadrat tenglamani yeching: x2+7x+6=0 a) x1=1, x2=-1; b) x1=-6, x2=-1; c) x1=-7, x2=-6; d) x1=1-, x2=-5; yopiq test savollari. 1) tenglamalar sistemasini yechish deganda nimani tushunasiz? 2) kvadrat tenglama nima? 3) viyet teoremasini yozing? 4) kvadrat funksiya nima? 5) parabola nima? 9-sinf. test javoblari. 1. a 6. d 2. b 7. c 3. d 8. c 4. d 9. a 5. a 10. b yopiq test javoblari. 1) tenglamalar sistemasini yechishni bu uning hamma yechimlarini topish yoki yo’qliginianizlashdi. 2) ax2+bx=0, bunda a=0, x-nomallum 3) x1+x2= -p, …

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8-sinf. matematikadan test 1. a = 2,4. b = 3,6, h = 1,6, bo’lsa, s = h/2 (a+b) ifodaning son qiymatini toping? a) 48; b) 3,18; c) 4, 8; d) 0,48; 2. a=5,1, b=4,7 bo’lsa, p= 2(a+b) ifodaning son qiymatini toping? a) 40; b) 19,6; c) 1,96; d) 36,1 3. qavslarni oching va soddalashtiring: 5a+(3a-(4a+3)). a) 8a+3; b) 4a-3; c) -4a-3; d) 3-4a; 4. 8(x+2)-5x=-2(x+4,5). a) -5; b) 5; c) 6; d) to’g’ri javob berilmagan. 5. 3(x+2) -2 (x+3)=7-5(x+1). a) -1/3; b) 1/3; c) -1; d) 2; 6. birhadning son qiymatini toping? 1/5a2b3c bunda a=-2, b=-1, c=10. a) -5/4; b) 5/4; c) -8; d) 8; 7.ko’phadni birhadga ko’paytiring: 4a-1/3x ∙ (-3x). a) -12ax-3x2; b) 3x2-12ax; c) 3x2+12ax; d) x2-12ax; 8.umumiy …

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