algebra test 7-sinf uchun

7-sinflar uchun algeradan test savollari 1. hisoblang: 137²+137·63; a) 27400 b) 26400 c) 25600 d) 25800 2. ko`paytuvchilarga ajrating: 9a²·b²-12a·b³; a) 3ab²(3a-4b); b) 3(a²b²-4ab³); c) 9(a²b²-ab³); d) ab(9ab-12ab²) 3. tenglamani yeching: 8-(x-3)·(x+3)=10·(x-1)²; a) x=3 b) x=2 c) x=4 d) x=5 4. hisoblang: 139·15+18·139+15·261+18·261; a)8800 b)9600 c)9900 5. tenglamani yeching: x(x-4)+x-4=0; a) x=4 ; x=-1 b)x=3; x=1 c)x=-4; x=1 d) x=-3;x= -1 6. ifodani soddalashtiring: (x-y)²+(x+y)²; a) 2x²+2y² b) 2·(x²+y²) c) x²· (2+2y²) d) y²· (2x²+2) 7. tenglamani yeching: (y-2²+(x+y)²=5; a)y=6 b)y=5 c)y=3 d)y=4 8. soddalashtiring: (c-3)²-(c+3)· (c-3); a)-6x b) 6x c)-7x d)5x 9. tenglamani yeching: (3x+1)²-(3x-2)(3x+2)=41: a) x=2 b) x=3 c) x=4 d) x= -2 10. tenglamani yeching: (x+2)(x²-2x+4)-x(x-3)(x+3)=26;...

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