{"id":1744,"date":"2020-09-17T14:26:23","date_gmt":"2020-09-17T06:26:23","guid":{"rendered":"http:\/\/www.xuehelp.cn\/?p=1744"},"modified":"2020-09-17T14:26:23","modified_gmt":"2020-09-17T06:26:23","slug":"%e3%80%8a%e5%87%a0%e4%bd%95%e5%8e%9f%e6%9c%ac%e3%80%8b%e9%87%8c%e5%bd%a2%e5%a6%82x2axb2a0b0%e7%9a%84%e6%96%b9%e7%a8%8b%e5%9b%be%e8%a7%a3%e6%b3%95","status":"publish","type":"post","link":"http:\/\/www.xuehelp.cn\/index.php\/archives\/1744","title":{"rendered":"\u300a\u51e0\u4f55\u539f\u672c\u300b\u91cc,\u5f62\u5982x^2+ax=b^2(a>0,b>0)\u7684\u65b9\u7a0b\u56fe\u89e3\u6cd5"},"content":{"rendered":"<p>\u300a\u51e0\u4f55\u539f\u672c\u300b\u91cc,\u5f62\u5982x^2+ax=b^2(a&gt;0,b&gt;0)\u7684\u65b9\u7a0b\u56fe\u89e3\u6cd5<br \/>\n\u4ee5a\/2\u548cb\u4e3a\u4e24\u76f4\u89d2\u8fb9\u4f5crt\u4e09\u89d2\u5f62ABC,\u518d\u5728\u659c\u8fb9\u4e0a\u622a\u53d6BD=a\/2,\u5219AD\u957f\u5c31\u662f\u6240\u6c42\u65b9\u7a0b\u7684\u89e3.<br \/>\n\u95ee\uff1a1\u3001\u8bf7\u7528a\u3001b\u4ee3\u6570\u5f0f\u8868\u793aAD\u7684\u957f<br \/>\n2\u3001\u8bf4\u660e\u8be5\u56fe\u89e3\u6cd5\u7684\u6b63\u786e\u6027,\u5e76\u8bf4\u8bf4\u8fd9\u79cd\u89e3\u6cd5\u7684\u9057\u61be\u4e4b\u5904.<!--more--><\/p>\n<p><a href=\"http:\/\/www.xuehelp.cn\/wp-content\/uploads\/2020\/09\/0917142056.png\" rel=\"attachment wp-att-1745\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-1745\" src=\"http:\/\/www.xuehelp.cn\/wp-content\/uploads\/2020\/09\/0917142056.png\" alt=\"0917142056\" width=\"337\" height=\"174\" srcset=\"http:\/\/www.xuehelp.cn\/wp-content\/uploads\/2020\/09\/0917142056.png 337w, http:\/\/www.xuehelp.cn\/wp-content\/uploads\/2020\/09\/0917142056-300x155.png 300w\" sizes=\"(max-width: 337px) 100vw, 337px\" \/><\/a><\/p>\n<p>1.AD=(-a+\u221a(a\u00b2+4b\u00b2) )\/2<br \/>\n2,\u7531\u52fe\u80a1\u5b9a\u7406<br \/>\nAB=\u221a(a\u00b2\/4+b\u00b2)<br \/>\nBD=a\/2<br \/>\nAD=AB-BD=(-a+\u221a(a\u00b2+4b\u00b2) )\/2;<br \/>\n\u9057\u61be\uff1a\u6f0f\u89e3 x2=(-a-\u221a(a\u00b2+4b\u00b2) )\/2<br \/>\n\u56e0\u4e3aAD&gt;0 x2<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u300a\u51e0\u4f55\u539f\u672c\u300b\u91cc,\u5f62\u5982x^2+ax=b^2(a&gt;0,b&gt;0)\u7684\u65b9\u7a0b\u56fe\u89e3\u6cd5 \u4ee5a\/2\u548cb\u4e3a\u4e24\u76f4\u89d2\u8fb9\u4f5cr [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[4],"tags":[575],"_links":{"self":[{"href":"http:\/\/www.xuehelp.cn\/index.php\/wp-json\/wp\/v2\/posts\/1744"}],"collection":[{"href":"http:\/\/www.xuehelp.cn\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/www.xuehelp.cn\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/www.xuehelp.cn\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/www.xuehelp.cn\/index.php\/wp-json\/wp\/v2\/comments?post=1744"}],"version-history":[{"count":1,"href":"http:\/\/www.xuehelp.cn\/index.php\/wp-json\/wp\/v2\/posts\/1744\/revisions"}],"predecessor-version":[{"id":1746,"href":"http:\/\/www.xuehelp.cn\/index.php\/wp-json\/wp\/v2\/posts\/1744\/revisions\/1746"}],"wp:attachment":[{"href":"http:\/\/www.xuehelp.cn\/index.php\/wp-json\/wp\/v2\/media?parent=1744"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/www.xuehelp.cn\/index.php\/wp-json\/wp\/v2\/categories?post=1744"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/www.xuehelp.cn\/index.php\/wp-json\/wp\/v2\/tags?post=1744"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}