{"id":11615,"date":"2024-05-10T00:00:18","date_gmt":"2024-05-09T15:00:18","guid":{"rendered":"https:\/\/www.educational-lounge.com\/?p=11615"},"modified":"2024-05-09T22:50:28","modified_gmt":"2024-05-09T13:50:28","slug":"%e3%80%90%e6%95%b0%e5%ad%a6%e2%85%b0%e3%80%91%e9%87%8d%e8%a6%81%e5%95%8f%e9%a1%8c%e3%80%8c%e4%ba%8c%e6%ac%a1%e6%96%b9%e7%a8%8b%e5%bc%8f%e3%81%ae%e8%a7%a3%e3%81%ae%e9%85%8d%e7%bd%ae%e5%95%8f%e9%a1%8c","status":"publish","type":"post","link":"https:\/\/www.educational-lounge.com\/?p=11615","title":{"rendered":"\u3010\u6570\u5b66\u2160\u3011\u91cd\u8981\u554f\u984c\u300c\u4e8c\u6b21\u65b9\u7a0b\u5f0f\u306e\u89e3\u306e\u914d\u7f6e\u554f\u984c\u300d\u306e\u539f\u5247\u3092\u78ba\u8a8d\u3057\u3088\u3046"},"content":{"rendered":"<p>\u3069\u3046\u3082, \u307f\u306a\u3055\u3093\u3053\u3093\u306b\u3061\u306f\u3002<br \/>\n\u9ad8\u6a4b\u4f73\u4f51\u3067\u3059\u3002<\/p>\n<p>\u524d\u56de\u306f<a href=\"https:\/\/www.educational-lounge.com\/?p=11569\">\u300c\u4e0d\u7b49\u5f0f\u306e\u6210\u7acb\u6761\u4ef6\u300d<\/a>\u3092\u30b0\u30e9\u30d5\u306e\u30a4\u30e1\u30fc\u30b8\u306b\u3088\u308a\u89e3\u304f\u65b9\u6cd5\u3092\u304a\u8a71\u3057\u3057\u307e\u3057\u305f\u3002<br \/>\n<div class=\"sc_getpost\"><a class=\"clearfix\" href=\"https:\/\/www.educational-lounge.com\/?p=11569\"  target=\"_blank\"><div class=\"sc_getpost_thumb post-box-thumbnail__wrap\"><img decoding=\"async\" src=\"data:image\/gif;base64,R0lGODdhAQABAPAAAN3d3QAAACwAAAAAAQABAAACAkQBADs=\" width=\"150\" height=\"150\" alt=\"\u30b0\u30e9\u30d5\u3092\u5229\u7528\u3057\u3066\u8003\u3048\u308b\uff01\u3000\u5165\u8a66\u983b\u51fa\u30c6\u30fc\u30de\u300c\u4e0d\u7b49\u5f0f\u306e\u6210\u7acb\u6761\u4ef6\u300d\u306e\u89e3\u6cd5\" loading=\"lazy\" data-src=\"https:\/\/www.educational-lounge.com\/wp-content\/uploads\/2024\/04\/eyecatch_math_2404-150x150.jpg\" class=\"lazyload\"><span style=\"background:\" 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style=\"padding: .25em 0.5em .75em; border-left: 6px solid #01297a; border-bottom: 1px solid #ccc;\">\u5224\u5225\u5f0f\u306b\u3064\u3044\u3066<\/h2>\n<p><img decoding=\"async\" class=\"wp-image-3560 aligncenter lazyload\" data-src=\"https:\/\/www.educational-lounge.com\/wp-content\/uploads\/2020\/06\/pexels-photo-167682-300x200.jpeg\" alt=\"\u6570\u5b66\u306e\u5206\u539a\u3044\u554f\u984c\u96c6\u306f\u300c\u554f\u984c\u8f9e\u66f8\u300d\u3068\u3057\u3066\u5229\u7528\u3057\u3088\u3046\" width=\"1920\" height=\"1280\" data-srcset=\"https:\/\/www.educational-lounge.com\/wp-content\/uploads\/2020\/06\/pexels-photo-167682-300x200.jpeg 300w, https:\/\/www.educational-lounge.com\/wp-content\/uploads\/2020\/06\/pexels-photo-167682-1024x683.jpeg 1024w, https:\/\/www.educational-lounge.com\/wp-content\/uploads\/2020\/06\/pexels-photo-167682-768x512.jpeg 768w, https:\/\/www.educational-lounge.com\/wp-content\/uploads\/2020\/06\/pexels-photo-167682-1536x1024.jpeg 1536w, https:\/\/www.educational-lounge.com\/wp-content\/uploads\/2020\/06\/pexels-photo-167682-2048x1365.jpeg 2048w\" data-sizes=\"(max-width: 1920px) 100vw, 1920px\" \/>\u6559\u79d1\u66f8\u3067\u306f, \u4e8c\u6b21\u65b9\u7a0b\u5f0f\\(ax^2+bx+c=0\\)\u306b\u304a\u3044\u3066\\(b^2-4ac\\)\u3092\u5224\u5225\u5f0f\u3068\u3044\u3044, \\(D\\)\u3067\u8868\u3059\u3053\u3068\u306b\u306a\u3063\u3066\u3044\u307e\u3059\u3002\u3053\u308c\u306f, \u89e3\u306e\u516c\u5f0f\u306e\\(\\sqrt{\u3000}\\)\u306e\u5185\u90e8\u306b\u306a\u3063\u3066\u3044\u308b\u306e\u3067, \\(D\\)\u306e\u7b26\u53f7\u3092\u8abf\u3079\u308c\u3070\u89e3\u306e\u7a2e\u985e\u304c\u5206\u304b\u308a\u307e\u3059\u3002<\/p>\n<div class=\"sc_frame_wrap inframe orange\">\n<div class=\"sc_frame_title\">\u89e3\u306e\u7a2e\u985e<\/div>\n<div class=\"sc_frame has-bg\">\n<div class=\"sc_designlist ul fa_caret 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has-bg\">\n<p>\u4e8c\u6b21\u65b9\u7a0b\u5f0f\\(x^2-2ax+a=0\\)\u304c\u7570\u306a\u308b\u7570\u306a\u308b2\u3064\u306e\u6b63\u306e\u89e3\u3092\u3082\u3064\u5b9a\u6570\\(a\\)\u306e\u5024\u306e\u7bc4\u56f2\u3092\u6c42\u3081\u3088\u3002<\/p>\n<\/div>\n<\/div>\n<p>\u3053\u306e\u3088\u3046\u306b\u4e8c\u6b21\u65b9\u7a0b\u5f0f\u304c\u7279\u5b9a\u306e\u7bc4\u56f2\u306b\u89e3\u3092\u3082\u3064\u6761\u4ef6\u3092\u8003\u3048\u308b\u554f\u984c\u3092\u300c\u4e8c\u6b21\u65b9\u7a0b\u5f0f\u306e\u89e3\u306e\u914d\u7f6e\u554f\u984c\u300d\u3068\u3044\u3044\u307e\u3059\u3002<\/p>\n<div class=\"sc_frame_wrap solid custom\">\n<div class=\"sc_frame \" style=\"border-color: #efefff; background-color: #efefff; color: #333;\">\n<div class=\"sc_frame_text\">\u65b9\u7a0b\u5f0f\u306e\u5b9f\u6570\u89e3\u306f\u30b0\u30e9\u30d5\u306e\u5171\u6709\u70b9\u306e\\(x\\)\u5ea7\u6a19\u306b\u5bfe\u5fdc\u3057\u307e\u3059\u304b\u3089, 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https:\/\/www.educational-lounge.com\/wp-content\/uploads\/2024\/05\/g1-768x589.png 768w, https:\/\/www.educational-lounge.com\/wp-content\/uploads\/2024\/05\/g1.png 969w\" data-sizes=\"(max-width: 300px) 100vw, 300px\" \/><\/a><\/p>\n<h3 class=\"sc_heading bborder tb custom\" style=\"color: #333333; background-color: #ffffff; border-color: #01297a; text-align: left;\">\u6761\u4ef6\u3092\u7acb\u5f0f\u3059\u308b<\/h3>\n<p>\u3067\u306f\u5b9f\u969b\u306b, \u30b0\u30e9\u30d5\u304c\u4e0a\u306e\u3088\u3046\u306b\u306a\u308b\u6761\u4ef6\u3092\u7acb\u5f0f\u3057\u3066\u307f\u307e\u3057\u3087\u3046\u3002<\/p>\n<p>\u554f\u984c\u306b\u3082\u3042\u308b\u901a\u308a, \u65b9\u7a0b\u5f0f\u304c\u300c\u7570\u306a\u308b2\u3064\u306e\u5b9f\u6570\u89e3\u3092\u3082\u3064\u300d\u3053\u3068\u3092\u8003\u3048\u308b\u3068, 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data-src=\"https:\/\/www.educational-lounge.com\/wp-content\/uploads\/2024\/05\/g2-300x159.png\" alt=\"\" width=\"300\" height=\"159\" class=\"aligncenter wp-image-11650 size-medium lazyload\" data-srcset=\"https:\/\/www.educational-lounge.com\/wp-content\/uploads\/2024\/05\/g2-300x159.png 300w, https:\/\/www.educational-lounge.com\/wp-content\/uploads\/2024\/05\/g2-1024x543.png 1024w, https:\/\/www.educational-lounge.com\/wp-content\/uploads\/2024\/05\/g2-768x408.png 768w, https:\/\/www.educational-lounge.com\/wp-content\/uploads\/2024\/05\/g2.png 1042w\" data-sizes=\"(max-width: 300px) 100vw, 300px\" \/><\/a><\/p>\n<p>\u30b0\u30e9\u30d5\u306e\u8ef8\\(x=a\\)\u304c\u5b9a\u307e\u3063\u3066\u3044\u306a\u3044\u306e\u3067\u5de6\u53f3\u306b\u52d5\u3044\u3066\u3057\u307e\u3044\u307e\u3059\u3002\u305d\u3053\u3067, 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data-src=\"https:\/\/www.educational-lounge.com\/wp-content\/uploads\/2024\/05\/g3-1-300x158.png\" alt=\"\" width=\"300\" height=\"158\" class=\"aligncenter wp-image-11675 size-medium lazyload\" data-srcset=\"https:\/\/www.educational-lounge.com\/wp-content\/uploads\/2024\/05\/g3-1-300x158.png 300w, https:\/\/www.educational-lounge.com\/wp-content\/uploads\/2024\/05\/g3-1-1024x538.png 1024w, https:\/\/www.educational-lounge.com\/wp-content\/uploads\/2024\/05\/g3-1-768x403.png 768w, https:\/\/www.educational-lounge.com\/wp-content\/uploads\/2024\/05\/g3-1.png 1074w\" data-sizes=\"(max-width: 300px) 100vw, 300px\" \/><\/a><\/p>\n<p>\u3053\u308c\u3089\u306e\u9055\u3044\u306f, \u5883\u76ee\u306e\u7b26\u53f7\u3067\u3059\u3002\u4eca\u56de\u306f$x&gt;\\color{red}{0}$\u306e\u7bc4\u56f2\u306b\u5171\u6709\u70b9\u3092\u3082\u3064\u6761\u4ef6\u3067\u3059\u304b\u3089, 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