作者coco100 (站在十字路口交點)
看板CS_TEACHER
標題Re: [請益] 請問數學補教老師…一題數學
時間Mon Dec 8 21:40:57 2008
2 2 2 2
a + (a+1) + [(a + a)]
2 2 2
=> a + (a+1) + [a(a+1)]
2 2 2 2
=> a + (a+1) + a (a+1)
2 2 2
=> (a+1) + a [ 1+(a+1) ]
2 2 2
=> (a+1) + a ( a + 2a + 2 )
2 2 2
=> (a+1) + a [ a + 2 (a+1) ]
2 4 2
=> (a+1) + a + 2 a (a+1)
2 2 2 2
=> (
a ) + 2 a (a+1) +
(a+1)
2 2
=> [
a +
(a+1) ]
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1F：推 uogyep:受教了~謝謝您的指導 12/08 22:12