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levantam
2 năm trước
Bài 1) Tìm x. A) (x-3)(x^2+16)=0. B) 35-x=16-(-2). C) -5.6^6-x = -180 D) 51-(-12+3x)=27 E) |x|-12=-5. Bài 2 Thực hiên phép tính sau ( tính nhanh nếu có thể ). A) 27(13-16)-16(13-27) B) (21/31+16/7)+(44/33+10/31)+9/53
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