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times="" new="" roman";mso-fareast-font-family:"times="" roman";="" mso-ansi-language:en-us;mso-fareast-language:en-us;mso-bidi-language:ar-sa"="">A ≠ 0 times="" new="" roman";="" mso-fareast-font-family:"times="" roman";mso-hansi-font-family:"times="" mso-bidi-font-family:"times="" roman";mso-ansi-language:en-us;mso-fareast-language:="" en-us;mso-bidi-language:ar-sa;mso-char-type:symbol;mso-symbol-font-family:wingdings"="">ó m ≠ 2 times="" new="" roman";mso-fareast-font-family:"times="" roman";="" mso-hansi-font-family:"times="" roman";mso-bidi-font-family:"times="" mso-ansi-language:en-us;mso-fareast-language:en-us;mso-bidi-language:ar-sa;="" mso-char-type:symbol;mso-symbol-font-family:wingdings"="">ótimes="" new="" roman";mso-fareast-font-family:="" "times="" roman";mso-ansi-language:en-us;mso-fareast-language:en-us;="" mso-bidi-language:ar-sa"=""> m ≠ 2 ▲’ < 0 (m – 1)^2 – (m+2) . 4 < 0 m^2 – 2m + 1 – 4m – 8 < 0 times="" new="" roman";mso-fareast-font-family:"times="" roman";="" mso-hansi-font-family:"times="" roman";mso-bidi-font-family:"times="" mso-ansi-language:en-us;mso-fareast-language:en-us;mso-bidi-language:ar-sa;="" mso-char-type:symbol;mso-symbol-font-family:wingdings"="">ótimes="" new="" roman";mso-fareast-font-family:="" "times="" roman";mso-ansi-language:en-us;mso-fareast-language:en-us;="" mso-bidi-language:ar-sa"=""> m ≠ 2 times="" new="" roman";mso-fareast-font-family:"times="" roman";="" mso-hansi-font-family:"times="" roman";mso-bidi-font-family:"times="" mso-ansi-language:en-us;mso-fareast-language:en-us;mso-bidi-language:ar-sa;="" mso-char-type:symbol;mso-symbol-font-family:wingdings"="">ótimes="" new="" roman";mso-fareast-font-family:="" "times="" roman";mso-ansi-language:en-us;mso-fareast-language:en-us;="" mso-bidi-language:ar-sa"=""> m ≠ 2 m^2 – 6m – 7 <0 -1 < x < 7 vậy m Є ( - 1 ; 7 ) ≠ 2chúc may mắn A ≠ 0 >ó="font-size:14.0pt;mso-bidi-font-size:12.0pt;font-family:"Times New Roman"; mso-fareast-font-family:"Times New Roman";mso-ansi-language:EN-US;mso-fareast-language: EN-US;mso-bidi-language:AR-SA"> m ≠ 2 ó m ≠ 2 ▲’ < 0 (m – 1)^2 – (m+2) . 4 < 0 m^2 – 2m + 1 – 4m – 8 < 0 ó m ≠ 2 ó m ≠ 2 m^2 – 6m – 7 <0 -1 < x < 7 vậy m Є ( - 1 ; 7 ) ≠ 2chúc may mắn times="" new="" roman";mso-fareast-font-family:"times="" roman";="" mso-ansi-language:en-us;mso-fareast-language:en-us;mso-bidi-language:ar-sa"="">A ≠ 0 times="" new="" roman";="" mso-fareast-font-family:"times="" roman";mso-hansi-font-family:"times="" mso-bidi-font-family:"times="" roman";mso-ansi-language:en-us;mso-fareast-language:="" en-us;mso-bidi-language:ar-sa;mso-char-type:symbol;mso-symbol-font-family:wingdings"="">ó m ≠ 2 times="" new="" roman";mso-fareast-font-family:"times="" roman";="" mso-hansi-font-family:"times="" roman";mso-bidi-font-family:"times="" mso-ansi-language:en-us;mso-fareast-language:en-us;mso-bidi-language:ar-sa;="" mso-char-type:symbol;mso-symbol-font-family:wingdings"="">ótimes="" new="" roman";mso-fareast-font-family:="" "times="" roman";mso-ansi-language:en-us;mso-fareast-language:en-us;="" mso-bidi-language:ar-sa"=""> m ≠ 2 ▲’ < 0 (m – 1)^2 – (m+2) . 4 < 0 m^2 – 2m + 1 – 4m – 8 < 0 times="" new="" roman";mso-fareast-font-family:"times="" roman";="" mso-hansi-font-family:"times="" roman";mso-bidi-font-family:"times="" mso-ansi-language:en-us;mso-fareast-language:en-us;mso-bidi-language:ar-sa;="" mso-char-type:symbol;mso-symbol-font-family:wingdings"="">ótimes="" new="" roman";mso-fareast-font-family:="" "times="" roman";mso-ansi-language:en-us;mso-fareast-language:en-us;="" mso-bidi-language:ar-sa"=""> m ≠ 2 times="" new="" roman";mso-fareast-font-family:"times="" roman";="" mso-hansi-font-family:"times="" roman";mso-bidi-font-family:"times="" mso-ansi-language:en-us;mso-fareast-language:en-us;mso-bidi-language:ar-sa;="" mso-char-type:symbol;mso-symbol-font-family:wingdings"="">ótimes="" new="" roman";mso-fareast-font-family:="" "times="" roman";mso-ansi-language:en-us;mso-fareast-language:en-us;="" mso-bidi-language:ar-sa"=""> m ≠ 2 m^2 – 6m – 7 <0 -1 < x < 7 vậy m Є ( - 1 ; 7 ) ≠ 2chúc may mắn

	1	tạo mới
A ≠ 0 ó m ≠ 2 ó m ≠ 2 ▲’ < 0 (m – 1)^2 – (m+2) . 4 < 0 m^2 – 2m + 1 – 4m – 8 < 0 ó m ≠ 2 ó m ≠ 2 m^2 – 6m – 7 <0 -1 < x < 7 vậy m Є ( - 1 ; 7 ) ≠ 2chúc may mắn

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hoahoa.nhynhay: . 11/5/2018 1:39:46 PM
hoahoa.nhynhay: . 11/5/2018 1:39:46 PM
hoahoa.nhynhay: . 11/5/2018 1:39:46 PM
hoahoa.nhynhay: . 11/5/2018 1:39:46 PM
hoahoa.nhynhay: . 11/5/2018 1:39:47 PM
hoahoa.nhynhay: . 11/5/2018 1:39:47 PM
hoahoa.nhynhay: . 11/5/2018 1:39:47 PM
hoahoa.nhynhay: . 11/5/2018 1:39:47 PM
hoahoa.nhynhay: . 11/5/2018 1:39:48 PM
hoahoa.nhynhay: . 11/5/2018 1:39:48 PM
hoahoa.nhynhay: . 11/5/2018 1:39:48 PM
hoahoa.nhynhay: . 11/5/2018 1:39:48 PM
hoahoa.nhynhay: . 11/5/2018 1:39:48 PM
hoahoa.nhynhay: . 11/5/2018 1:39:49 PM
hoahoa.nhynhay: . 11/5/2018 1:39:49 PM
hoahoa.nhynhay: . 11/5/2018 1:39:49 PM
hoahoa.nhynhay: . 11/5/2018 1:39:49 PM
hoahoa.nhynhay: . 11/5/2018 1:39:50 PM
hoahoa.nhynhay: . 11/5/2018 1:39:50 PM
hoahoa.nhynhay: ..................... 11/5/2018 1:39:52 PM
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