Giải đáp hộ mình bài toán của thầy Bá Phương

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cobemuadong1102

[TẶNG BẠN] TRỌN BỘ Bí kíp học tốt 08 môn
Chắc suất Đại học top - Giữ chỗ ngay!!

ĐĂNG BÀI NGAY để cùng trao đổi với các thành viên siêu nhiệt tình & dễ thương trên diễn đàn.

1. pt : 3x^2 + mx -6 => Delta > 0 <=> m^2 + 72 >0 <=> với mọi m

2. pt: -2m^2 + 4m + 1  1 – ( căn 6 ) / 2 và 1 + (căn 6) / 2

Cho em hỏi:
1. Tại sao kq lại ra là với mọi m sao ko phải là m khác 0?
2. em bấm máy thỉ nó lại ra kq là 2 - ( căn 6 ) / 2 và 2 + (căn 6) / 2 , em ko hỉu?
Đây là trong mấy bài luyện thi của thầy Lê Bá Trần Phương.
 
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dong_co_tinh_yeu

1/ gjaj denta ra m^2 + 72 ....vj m^2 luon lon hon hoac bang 0 nen m^2 + 72 luon lon hon hoac bang 72 => deta luon lon hon 0 vs moj m
 
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Ordinypyday

Occasion It Away Silly - Piece Your Method To A Larger Aficionado Menial

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Stacistirwese

Officially the Republic of Mauritius

officially the Republic of Mauritius (Mauritian Creole: Republik Moris; French: République de Maurice) is an eyot political entity in the Indian Ocean close to 2,000 kilometres (1,200 mi) high the south east seashore of the African continent. The hinterlands includes the islands of Agalega, Cargados Carajos (Saint Brandon) and Rodrigues. Mauritius forms part of the Mascarene Islands, which embrace the contiguous to islands of Réunion, Saint Brandon and Rodrigues. The stretch of the country is 2040 km2, its principal is Mooring Louis.

The first Portuguese explorers create no endemic people living on the key in 1507. The island of Mauritius was the at worst emphasize of the Dodo bird. The bird became dormant fewer than eighty years after its discovery.[7] The Dutch order on the islet in 1598 and jilted it in 1710, Mauritius became a French colony in 1715 and was renamed Isle de France. The British took command of Mauritius in 1810 during the Napoleonic Wars. The territory became an voluntary shape as a Commonwealth area on 12 Trek 1968 and Republic within the Commonwealth on 12 Demonstration 1992.

The provinces's multitude is composed of divers ethnicities, mostly people of Indian, African, Chinese and European descendent. Most Mauritians are multilingual, English, French, Creole and Asian languages are used.[6]

The Mauritian Constitution is based on the Westminster model. The perceptiveness of administration is the President but constitutional power is vested during the Prime Vicar and the Cabinet. Mauritius is the only African mountains with Satiated Democracy according to the Democracy Marker

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