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thangkoff28
2 năm trước
Giải phương trình sau a) ( x^2 + 2x + 3 )^2 - 9( x^2 + 2x + 3 ) + 18 = 0 b) x( x + 1 )( x^2 + x + 1 ) = 42 c) ( x - 1 )( x - 3 )( x + 5 )( x + 7 ) - 297 = 0 d) x^4 - 2x^2 - 144x - 1295 = 0 mk đang cần gấp ai làm được hứa cho 5 sao
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