計數題~~~~~~
回答 (4)
2007-10-06 7:05 pm
x^2+5x+6
2007-10-06 7:00 pm
(x+2)(x+3)
=x(x+3)+2(x+3)
=x^2+3x+2x+6
=x^2+5x+6
=x(x+3)+2(x+3)
=x^2+3x+2x+6
=x^2+5x+6
2007-10-06 6:57 pm
(x+2)(x+3)
=x^2+3x+2x+6
=x^2+5x+6
=x^2+3x+2x+6
=x^2+5x+6
收錄日期: 2021-04-13 18:33:58
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20071006000051KK01156