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huyenhuyen99
2 năm trước
Cho 2 số nguyên a và b thỏa mãn a+b<0 . Kết luận nào sau đây ko đúng. A.Có thể a là số nguyên âm,b là số nguyên dương B.a và b có thể là hai số nguyên âm C. Có thể a là số nguyên dương, b là số nguyên âm D. a và b có thể là hai số nguyên dương C2: Cho các số nguyên x và y thỏa mãn: x+y=-18. Cặp số (x;y) nào sau đây thỏa mãn A .x = -1 ; y = 19 B. x = 20 ; y= -2 C.x=-8 ; y= -26 D:x=-24; y=6 C3 : Số giá trị của x thỏa mãn |x|=2 A.x= -2; x=2 B. x= -2;x=0 C.x=2 D.x=0; x=2
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