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thaokakato
2 năm trước
Câu 1 a,cho biểu thức :(3x-5).(2x+11)-(2x+3).(3x+7) Câu 2 Tìm x biết: a,(3x+5).(2x-1)+(5-6x).(x+2)=x b,(5x-3).(7x+2)-35x(x-1)=42 Câu 2 a,Giá trị x thoả mãn (10x+9).x-(5x-1)(2x+3)=8 b, Giá trị x thoả mãn x(x+1)(x+6)-x³=5x c, Giá trị x thoả mãn 2x²+3(x-1)(x+1)=5x(x+1)
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