{"width":"100%","author_url":"https://blog.hatena.ne.jp/Nikojuge/","author_name":"Nikojuge","published":"2026-01-28 13:29:55","image_url":null,"version":"1.0","html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Fnikojuge.hatenablog.com%2Fentry%2F2026%2F01%2F28%2F132955\" title=\"\u5831\u544a\u66f8No.2\u3000\u304a\u304b\u3057\u306a\u7121\u7406\u65b9\u7a0b\u5f0f\u306e\u8b0e - \u3059\u30fc\u304c\u304f\u3051\u3093\u304d\u3085\u30fc\u3058\u3087\" class=\"embed-card embed-blogcard\" scrolling=\"no\" frameborder=\"0\" style=\"display: block; width: 100%; height: 190px; max-width: 500px; margin: 10px 0px;\"></iframe>","blog_title":"\u3059\u30fc\u304c\u304f\u3051\u3093\u304d\u3085\u30fc\u3058\u3087","provider_url":"https://hatena.blog","provider_name":"Hatena Blog","url":"https://nikojuge.hatenablog.com/entry/2026/01/28/132955","blog_url":"https://nikojuge.hatenablog.com/","height":"190","categories":["\u4e2d\u9ad8\u6570\u5b66"],"type":"rich","description":"\u3053\u3093\u306b\u3061\u306f\u3001\u3059\u30fc\u304c\u304f\u3051\u3093\u304d\u3085\u30fc\u3058\u3087\u306e\u6240\u9577\u3067\u3059\u3002\u4eca\u65e5\u306e\u30c6\u30fc\u30de\u306f\u3053\u3061\u3089\u3067\u3059\uff01 x+1=\u221a(x+7) \u3053\u308c\u3092\u89e3\u304f\u306b\u306f\u3001\u307e\u305a\u4e21\u8fba2\u4e57\u3057\u3066\u3001 (x+1)\u00b2=x+7 x\u00b2+2x+1=x+7 x\u00b2+x-6=0 (x-2)(x+3)=0 x=2,-3 \u3053\u308c\u3067\u89e3\u3051\u305f\u306f\u305a\u306a\u3093\u3067\u3059\u3051\u3069\u3001\u8a66\u3057\u306b\u4ee3\u5165\u3057\u3066\u78ba\u304b\u3081\u3066\u307f\u307e\u3057\u3087\u3046\uff01 x=2\u3092\u4ee3\u5165\u3059\u308b\u3068 2+1=\u221a(2+7) 3=\u221a9 3=3 \u3088\u3063\u3066x=2\u306f\u6b63\u3057\u3044\u3067\u3059\u306d\uff01 x=-3\u3092\u4ee3\u5165\u3059\u308b\u3068 -3+1=\u221a(-3+7) -2=\u221a4 -2=2 \u3042\u308c\uff1f\u3068\u3044\u3046\u3053\u3068\u306f\u3001x=-3\u306f\u9055\u3046\u3063\u3066\u3053\u3068\u3067\u3059\u306d\u3002\u3088\u3063\u3066\u3053\u306e\u65b9\u7a0b\u5f0f\u306e\u89e3\u306fx=2\u306e\u307f\u3067\u3059\u3002 \u3067\u3082\u306a\u305c\u3053\u3093\u306a\u3053\u3068\u304c\u8d77\u3053\u308b\u306e\u3067\u3057\u3087\u3046\u304b\uff1f","title":"\u5831\u544a\u66f8No.2\u3000\u304a\u304b\u3057\u306a\u7121\u7406\u65b9\u7a0b\u5f0f\u306e\u8b0e"}