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JINJIDEUNG
2 năm trước
Tìm số nguyên x, biết a) (3x+5)-(x+25)=x+8 b) 35-/2x-1/=14 c) (x mũ 2 -1).(x mũ 2+2).(x-3)=0 d) (x+1).(x mũ 2 +1)=0 e) 2 .(x-5)-3.(x-4)=(-6) + 15. (-3)
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