① x² +6x+﹙﹚=﹙x+﹙﹚﹚² ②x² -x+﹙﹚=﹙x-﹙﹚﹚²
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![① x² +6x+﹙﹚=﹙x+﹙﹚﹚² ②x² -x+﹙﹚=﹙x-﹙﹚﹚²](/uploads/image/z/2524117-13-7.jpg?t=%E2%91%A0+x%26%23178%3B+%EF%BC%8B6x%EF%BC%8B%EF%B9%99%EF%B9%9A%EF%BC%9D%EF%B9%99x%EF%BC%8B%EF%B9%99%EF%B9%9A%EF%B9%9A%26%23178%3B+%E2%91%A1x%26%23178%3B+%EF%BC%8Dx%EF%BC%8B%EF%B9%99%EF%B9%9A%EF%BC%9D%EF%B9%99x%EF%BC%8D%EF%B9%99%EF%B9%9A%EF%B9%9A%26%23178%3B)
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① x² +6x+﹙﹚=﹙x+﹙﹚﹚² ②x² -x+﹙﹚=﹙x-﹙﹚﹚²
① x² +6x+﹙﹚=﹙x+﹙﹚﹚² ②x² -x+﹙﹚=﹙x-﹙﹚﹚²
① x² +6x+﹙﹚=﹙x+﹙﹚﹚² ②x² -x+﹙﹚=﹙x-﹙﹚﹚²
① x² +6x+﹙9﹚=﹙x+﹙3﹚﹚²
②x² -x+﹙1/4﹚=﹙x-﹙1/2﹚﹚²