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ThuytienNEU
2 năm trước
Bài 1: giải các phương trình sau. a. 2x+6=0 b. 2(x+1)=5x -7 c.2x+1=15 -5x Bài 2:giải các phương trình. a.(x - 6)(x^2 - 4)= 0 b.(2x + 5)(4x^2 - 9)=0 c. x^2 -2x+1=4 d. x^2 - 5x + 6 = 0
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