{"image_url":"https://cdn-ak.f.st-hatena.com/images/fotolife/h/hirofumi-imai/20250602/20250602084936.jpg","provider_name":"Hatena Blog","width":"100%","html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Fhirofumi-imai.hatenadiary.jp%2Fentry%2F2025%2F06%2F02%2F014323\" title=\"\u4e2d\u5b66\u6570\u5b66\u3000\u4e57\u6cd5\u516c\u5f0f - \u3072\u308d\u3075\u307f\u306e\u304b\u3057\u3053\u304f\u306a\u308b\u6570\u5b66\" class=\"embed-card embed-blogcard\" scrolling=\"no\" frameborder=\"0\" style=\"display: block; width: 100%; height: 190px; max-width: 500px; margin: 10px 0px;\"></iframe>","height":"190","author_url":"https://blog.hatena.ne.jp/hirofumi-imai/","version":"1.0","provider_url":"https://hatena.blog","blog_url":"https://hirofumi-imai.hatenadiary.jp/","published":"2025-06-02 01:43:23","type":"rich","title":"\u4e2d\u5b66\u6570\u5b66\u3000\u4e57\u6cd5\u516c\u5f0f","url":"https://hirofumi-imai.hatenadiary.jp/entry/2025/06/02/014323","description":"\u3010\u306f\u3058\u3081\u306b\u3011 \u524d\u56de\u306e\u591a\u9805\u5f0f\u306e\u5c55\u958b\u3092\u8e0f\u307e\u3048\u3001\u975e\u5e38\u306b\u3088\u304f\u4f7f\u308f\u308c\u308b\u4e57\u6cd5\u516c\u5f0f\u3092\u89e3\u8aac\u3057\u307e\u3059\u3002 \uff08\u4e57\u6cd5\u516c\u5f0f\uff09 (1) (x+a)(x+b)=x^2+(a+b)x+ab (2)(\u30a2) (x+a)^2=x^2+2ax+a^2 (\u30a4) (x-a)^2=x^2-2ax+a^2 (3) (x+a)(x-a)=x^2-a^2 \uff08\u8a3c\u660e\uff09 (1) (x+a)(x+b) =x(x+b)+a(x+b) =x^2+bx+ax+ab =x^2+(a+b)x+ab (2)(\u30a2) (x+a)^2 = (x+a)(x+a) =x^2+(a+a)x+a\u00d7a =x^2+2ax+a^2 (\u30a4) (x-a)^2 = (x-a)(x-a) =x\u2026","blog_title":"\u3072\u308d\u3075\u307f\u306e\u304b\u3057\u3053\u304f\u306a\u308b\u6570\u5b66","author_name":"hirofumi-imai","categories":[]}