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MicrosoftInternetExplorer4
/* Style Definitions */
table.MsoNormalTable
{mso-style-name:"Table Normal";
mso-tstyle-rowband-size:0;
mso-tstyle-colband-size:0;
mso-style-noshow:yes;
mso-style-parent:"";
mso-padding-alt:0cm 5.4pt 0cm 5.4pt;
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7x2+7x=√1/28(4x+9)
7x2+7x=(√4x+9)/(2√7)
7x(x+1)=(√4x+9)/(2√7)
$\sqrt{4x+9} = 14\sqrt{7}x^2 +14\sqrt{7}x(\sqrt{7})\sqrt{4x+9}=98x(x+1)x= 5/(7\sqrt{2}) -3/7 hoặc x= -4/7 - (\sqrt{23/2})/7$
Normal
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MicrosoftInternetExplorer4
/* Style Definitions */
table.MsoNormalTable
{mso-style-name:"Table Normal";
mso-tstyle-rowband-size:0;
mso-tstyle-colband-size:0;
mso-style-noshow:yes;
mso-style-parent:"";
mso-padding-alt:0cm 5.4pt 0cm 5.4pt;
mso-para-margin:0cm;
mso-para-margin-bottom:.0001pt;
mso-pagination:widow-orphan;
font-size:10.0pt;
font-family:"Times New Roman";
mso-ansi-language:#0400;
mso-fareast-language:#0400;
mso-bidi-language:#0400;}
7x2+7x=√1/28(4x+9)
7x2+7x=(√4x+9)/(2√7)
7x(x+1)=(√4x+9)/(2√7)
\displaystyle{\sqrt{4x+9 = 14\sqrt{7}x^2 +14\sqrt{7}x}
(√7)√4x+9=98x(x+1)
x=5/(7√2)−3/7hoặcx=−4/7−(√23/2)/7
Normal
0
false
false
false
MicrosoftInternetExplorer4
/* Style Definitions */
table.MsoNormalTable
{mso-style-name:"Table Normal";
mso-tstyle-rowband-size:0;
mso-tstyle-colband-size:0;
mso-style-noshow:yes;
mso-style-parent:"";
mso-padding-alt:0cm 5.4pt 0cm 5.4pt;
mso-para-margin:0cm;
mso-para-margin-bottom:.0001pt;
mso-pagination:widow-orphan;
font-size:10.0pt;
font-family:"Times New Roman";
mso-ansi-language:#0400;
mso-fareast-language:#0400;
mso-bidi-language:#0400;}
7x2+7x=√1/28(4x+9)
7x2+7x=(√4x+9)/(2√7)
7x(x+1)=(√4x+9)/(2√7)
$\sqrt{4x+9
} = 14\sqrt{7}x^2 +14\sqrt{7}x
(\sqrt{7})\sqrt{4x+9}=98x(x+1)
x= 5/(7\sqrt{2}) -3/7 hoặc x= -4/7 - (\sqrt{23/2})/7$