Mn giúp mk! Mk xin trân thành cảm ơn Bài 1: Tìm x, biết a) 2^x:4=16 b) 25<2^x<1025 c) (17x-25):8+65=9^2 d) 1+2+3+...+x=78 e) (x-4).(x-3)=0 f) x^2+x=0 g) 2.(x-1)+3(x-2)=x-4

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