May 2021 3 206 Report
toan 8 on tap chuong 3.chi can tra loi cau hoi ho thui!?

2.Nhan ca 2 ve cua 1 phuong trinh voi cung mot bieu thuc chua an o mau thi co the khong duoc phuong trinh tuong duong.Em hay cho 1 vi du

3.Voi DK nao cua a thi phuong trinh ax + b=0 la 1 phuong trinh bac nhat?(a va b la 2 hang so)

5.Khi giai phuong trinh chua an o mau , ta phai chu y dieu gi?

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