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1\u3001\u5706\u4e0e\u5f27\u7684\u516c\u5f0f<\/p>\n
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2\u3001\u56e0\u5f0f\u5206\u89e3\u516c\u5f0f<\/p>\n
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3\u3001\u5e73\u65b9\u5dee\u516c\u5f0f<\/p>\n
a\u5e73\u65b9-b\u5e73\u65b9=\uff08a+b\uff09\uff08a-b\uff09<\/p>\n
4\u3001\u5b8c\u5168\u5e73\u65b9\u548c\u516c\u5f0f<\/p>\n
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5\u3001\u5b8c\u5168\u5e73\u65b9\u5dee\u516c\u5f0f<\/p>\n
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6\u3001\u4e24\u6839\u5f0f<\/p>\n
ax?+bx+c=a[x-\uff08-b+\u221a\uff08b?-4ac\uff09\uff09\/2a][x-\uff08-b-\u221a\uff08b?-4ac\uff09\uff09\/2a]<\/p>\n
7\u3001\u7acb\u65b9\u548c\u516c\u5f0f<\/p>\n
a^3+b^3=\uff08a+b\uff09\uff08a?-ab+b?\uff09<\/p>\n
8\u3001\u7acb\u65b9\u5dee\u516c\u5f0f<\/p>\n
a^3-b^3=\uff08a-b\uff09\uff08a?+ab+b?\uff09<\/p>\n
9\u3001\u5b8c\u5168\u7acb\u65b9\u516c\u5f0f<\/p>\n
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10\u3001\u4e00\u5143\u4e8c\u6b21\u65b9\u7a0b\u516c\u5f0f\u4e0e\u5224\u522b\u5f0f<\/p>\n
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11\u3001\u5224\u522b\u5f0f<\/p>\n
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b?-4ac<0 \u6ce8\uff1a\u65b9\u7a0b\u6ca1\u6709\u5b9e\u6839\uff0c\u6709\u5171\u8f6d\u590d\u6570\u6839<\/p>\n
12\u3001\u4e09\u89d2\u4e0d\u7b49\u5f0f<\/p>\n
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13\u3001\u7b49\u5dee\u6570\u5217\u516c\u5f0f<\/p>\n
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13+23+33+43+53+63+\u2026n3=n2\uff08n+1\uff092\/41*2+2*3+3*4+4*5+5*6+6*7+\u2026+n\uff08n+1\uff09=n\uff08n+1\uff09\uff08n+2\uff09\/3<\/p>\n
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1\u3001\u70b9\u3001\u7ebf\u3001\u89d2 \u70b9\u7684\u5b9a\u7406<\/p>\n
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2\u3001\u51e0\u4f55\u5e73\u884c<\/p>\n
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3\u3001\u4e09\u89d2\u5f62\u5185\u89d2\u5b9a\u7406<\/p>\n
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4\u3001\u5168\u7b49\u4e09\u89d2\u5f62\u5224\u5b9a<\/p>\n
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5\u3001\u89d2\u7684\u5e73\u5206\u7ebf<\/p>\n
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6\u3001\u7b49\u8170\u4e09\u89d2\u5f62\u6027\u8d28<\/p>\n
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7\u3001\u5bf9\u79f0\u5b9a\u7406<\/p>\n
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