\u5728\u5b66\u4e60\u5206\u5f0f\u65b9\u7a0b\u65f6\uff0c\u6211\u4eec\u4f1a\u521d\u6b21\u63a5\u89e6\u5230\u201c\u589e\u6839\u201d\u8fd9\u4e2a\u6982\u5ff5\u3002\u6211\u8fd9\u8fb9\u7528\u7684\u5317\u5e08\u5927\u7248\u6559\u6750\u4e0a\u5bf9\u4e8e\u589e\u6839\u6ca1\u6709\u8fc7\u591a\u7684\u9610\u8ff0\uff0c\u53ea\u662f\u4e3e\u4f8b\u5728\u67d0\u4e2a\u5206\u5f0f\u65b9\u7a0b\u4e2d\u89e3\u51fa\u6765\u4e00\u4e2a$x$\uff0c\u53d1\u73b0\u5b83\u4f7f\u5f97\u539f\u5206\u5f0f\u65b9\u7a0b\u5206\u6bcd\u4e3a0\uff0c\u4fbf\u79f0\u5176\u4e3a\u539f\u65b9\u7a0b\u7684\u589e\u6839\u3002\u5355\u770b\u8fd9\u4e2a\u5b9a\u4e49\uff0c\u8fd8\u86ee\u597d\u7406\u89e3\u7684\uff0c\u5c06\u8fd9\u4e2a$x$\u4ee3\u5165\u539f\u5206\u5f0f\u65b9\u7a0b\u540e\uff0c\u4f1a\u51fa\u73b0\u65e0\u610f\u4e49\u7684\u5206\u5f0f\uff0c\u81ea\u7136\u4e0d\u80fd\u7b97\u4f5c\u539f\u65b9\u7a0b\u7684\u6839\u3002\u53ef\u76f4\u5230\u6211\u9047\u5230\u4e86\u8fd9\u6837\u4e00\u9053\u9898\uff0c\u624d\u8ba9\u6211\u5bf9\u589e\u6839\u6709\u4e86\u66f4\u6df1\u4e00\u4e9b\u7684\u4e86\u89e3\u2026\u2026<\/p>\n
\u9898\u9762\uff1a\u82e5\u5173\u4e8e$x$\u7684\u65b9\u7a0b$\\dfrac{m}{x+3}-\\dfrac{1}{x^{2}-9}=2$\u6709\u589e\u6839\uff0c\u5219\u589e\u6839\u53ef\u80fd\u662f\uff08\uff09\u3002<\/p>\n
A. $x=3$\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 B. $x=-3$\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0C. $x=\\pm \\sqrt{3}$\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0D. $x=\\pm 3$<\/p>\n
\u5f53\u65f6\uff0c\u8001\u5e08\u544a\u8bc9\u6211\u4eec\u9009D\uff0c\u7406\u7531\u5f88\u7b80\u5355\uff1a\u82e5\u5206\u5f0f$\\dfrac{m}{x+3}$\u65e0\u610f\u4e49\uff0c\u5219\u589e\u6839\u53ef\u80fd\u4e3a$x=-3$\uff1b\u82e5\u5206\u5f0f$\\dfrac{1}{x^{2}-9}$\u65e0\u610f\u4e49\uff0c\u5219\u589e\u6839\u53ef\u80fd\u4e3a$x=-3,\\, 3$\u3002\u7efc\u5408\u6765\u770b\uff0c\u539f\u65b9\u7a0b\u7684\u589e\u6839\u53ef\u80fd\u4e3a$x=\\pm 3$\u3002<\/p>\n
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\u2014\u2014\u80fd\u4e0d\u80fd\u4e0d\u4e58\u6700\u7b80<\/strong>\u516c\u5206\u6bcd\uff0c\u800c\u662f\u76f4\u63a5\u4e58\u67d0\u4e2a\u516c\u5206\u6bcd\u5462\uff1f\u8fd9\u91cc\u6211\u4eec\u8003\u8651\u4e00\u4e2a\u7b80\u5355\u7684\u5206\u5f0f\u65b9\u7a0b$$\\frac{1}{x-1}=0.$$\u663e\u7136\u5b83\u7684\u6700\u7b80\u516c\u5206\u6bcd\u662f$x-1$\uff0c\u800c\u539f\u65b9\u7a0b\u4e58\u4e0a$x-1$\u540e\u5f97\u5230$1=0$\uff0c\u8bf4\u660e\u6574\u5f0f\u65b9\u7a0b\u65e0\u6839\uff0c\u6545\u539f\u5206\u5f0f\u65b9\u7a0b\u65e0<\/strong>\u589e\u6839\uff1b\u4f46\u662f\u6211\u4eec\u82e5\u5c06\u539f\u65b9\u7a0b\u4e58\u4e0a\u4e00\u4e2a\u975e\u6700\u7b80<\/strong>\u516c\u5206\u6bcd$(x-1)^{2}$\uff0c\u5c31\u4f1a\u5f97\u5230$x-1=0$\uff0c\u89e3\u5f97$x=1$\uff0c\u53d1\u73b0\u5b83\u662f\u539f\u5206\u5f0f\u65b9\u7a0b\u7684\u589e\u6839\uff0c\u5373\u539f\u65b9\u7a0b\u6709\u4e00\u4e2a<\/strong>\u589e\u6839$x=1$\u3002<\/p>\n 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\u540e\u8bdd<\/h3>\n
——— END ———<\/h3>\n","protected":false},"excerpt":{"rendered":"