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Content text B1-DẤU CỦA TAM THỨC BẬC 2-P3-GHÉP HS.pdf



 Dạng 1. Tìm nghiệm và biệt thức của tam thức bậc hai  Lời giải ..................................................................................................................................................................... ..................................................................................................................................................................... ..................................................................................................................................................................... ..................................................................................................................................................................... ..................................................................................................................................................................... ..................................................................................................................................................................... ..................................................................................................................................................................... ..................................................................................................................................................................... ..................................................................................................................................................................... ..................................................................................................................................................................... ..................................................................................................................................................................... ..................................................................................................................................................................... ..................................................................................................................................................................... ..................................................................................................................................................................... ..................................................................................................................................................................... ..................................................................................................................................................................... ..................................................................................................................................................................... ..................................................................................................................................................................... ..................................................................................................................................................................... ..................................................................................................................................................................... Các dạng bài tập » Tam thức bậc hai đối với là biểu thức có dạng , trong đó là những hệ số, . » Nghiệm của phương trình được gọi là nghiệm của tam thức bậc hai . » và theo thứ tự được gọi là biệt thức và biệt thức thu gọn của tam thức bậc hai . Phương pháp Ví dụ 1.1. Tìm biệt thức và nghiệm của các tam thức bậc hai sau (1) (2) (3) (4) (5) (6)
 Lời giải ..................................................................................................................................................................... ..................................................................................................................................................................... ..................................................................................................................................................................... ..................................................................................................................................................................... ..................................................................................................................................................................... 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Ví dụ 1.2. Tìm biệt thức và nghiệm (nếu có) của các tam thức bậc hai sau: (1) (2) (3) (4)

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