Cách giải bất phương trình chưa dấu giá trị tuyệt đối

C&aacute;ch gi&#7843;i b&#7845;t ph&#432;&#417;ng tr&igrave;nh ch&#432;a d&#7845;u gi&aacute; tr&#7883; tuy&#7879;t &#273;&#7889;i hay nh&#7845;t

C&aacute;ch gi&#7843;i b&#7845;t ph&#432;&#417;ng tr&igrave;nh ch&#432;a d&#7845;u gi&aacute; tr&#7883; tuy&#7879;t &#273;&#7889;i hay nh&#7845;t (&#7843;nh 2)

C&aacute;ch gi&#7843;i b&#7845;t ph&#432;&#417;ng tr&igrave;nh ch&#432;a d&#7845;u gi&aacute; tr&#7883; tuy&#7879;t &#273;&#7889;i hay nh&#7845;t (&#7843;nh 3)

C&aacute;ch gi&#7843;i b&#7845;t ph&#432;&#417;ng tr&igrave;nh ch&#432;a d&#7845;u gi&aacute; tr&#7883; tuy&#7879;t &#273;&#7889;i hay nh&#7845;t (&#7843;nh 4)

C&aacute;ch gi&#7843;i b&#7845;t ph&#432;&#417;ng tr&igrave;nh ch&#432;a d&#7845;u gi&aacute; tr&#7883; tuy&#7879;t &#273;&#7889;i hay nh&#7845;t (&#7843;nh 5)

C&aacute;ch gi&#7843;i b&#7845;t ph&#432;&#417;ng tr&igrave;nh ch&#432;a d&#7845;u gi&aacute; tr&#7883; tuy&#7879;t &#273;&#7889;i hay nh&#7845;t (&#7843;nh 6)

C&aacute;ch gi&#7843;i b&#7845;t ph&#432;&#417;ng tr&igrave;nh ch&#432;a d&#7845;u gi&aacute; tr&#7883; tuy&#7879;t &#273;&#7889;i hay nh&#7845;t (&#7843;nh 7)

C&aacute;ch gi&#7843;i b&#7845;t ph&#432;&#417;ng tr&igrave;nh ch&#432;a d&#7845;u gi&aacute; tr&#7883; tuy&#7879;t &#273;&#7889;i hay nh&#7845;t (&#7843;nh 8)