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774099895

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- ((t - 298)*(9721214300685155625*t^4 + 269727226695242435163750*t^3 - 155294725886681847198002500*t^2 + 3061940269118709450058190552*t + 29896575618040071342615381002096))/362677745884388752411852800000000 - 627/10¡£¡£¡£
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774099895: ½ð±Ò+1, ²»ÊÇÒªÕ¹¿ª£¬ÎÒÏë°ÑÄÇЩ·ÖÊýÐÎʽµÄϵÊýת»¯³ÉÊýÖµ£¬±ÈÈç627/10ת»¯Îª62.7¡£¡£¡£¡£ÄÜÀí½âÂð 2014-07-27 14:50:12
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y=(22+x)*((4+2)*x+2)

y =

(6*x + 2)*(x + 22)

>> expand(y)

ans =

6*x^2 + 134*x + 44
2Â¥2014-07-26 20:27:01
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