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2 năm trước
Bài 1:Tìm x: a)|x|=x+2 b)|x-1|=x c)|x-1|+|x+1|=2x-3 Bài 2:Tìm x để các biểu thức sau có giá trị nhỏ nhất. Giá trị nhỏ nhất là bao nhiêu? a) A=|x+2/3| b)B=|x|+1/2 c)|x-1/2|+3 d)E=|x-2/3|-4-1/2 e) F=|3/8-x+5/6|-7 Mọi người giúp mik với. Mik đang cần gấp.
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