<P>이차방정식<img onLoad='miniSelfResize(contents_957,this); if(this.parentNode.tagName=="A"){this.onclick = "";}' src="/shop/lib/meditor/../../data/editor/1325834527.jpg"><COMMENT class=MATH>[0]#wh4/4.3`5.6/11,[1]{{x}^{2}}</COMMENT><COMMENT class=MATH>[0]#wh4/3.5`4.3/11,[1]{plus}</COMMENT><COMMENT class=MATH>[0]#wh4/13.4`4.3/11,[1]{lrbracket`k`plus`1`rrbracket`x}</COMMENT><COMMENT class=MATH>[0]#wh4/3.5`4.3/11,[1]{plus}</COMMENT><COMMENT class=MATH>[0]#wh4/19.8`4.3/11,[1]{k`lrbracket`k`plus`2`rrbracket`equal`0}</COMMENT>의 두 근의 곱이 15 라면 두근의 합이 무엇인지요. 좀 가르쳐 주세요</P>
