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Anh Nguyen
Giới thiệu về bản thân
id ff:2306892138. Mik tên thật là Tạ Hoàng Anh. I
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2023-01-07 22:31:37
a) 3x+6-2=10
=>3x+4-10=0
=>3x-6=0
=>3x=-6
=>x=-2
vậy x=2
b)
b)x2-2x-3x+6=0
=>x(x-2)-3(x-2)=0
=>(x-2).(x-3)=0
=>x=2; x=3
vậy x={2;3}.
2022-07-13 18:53:45
girl