Help me solve this difficult problem a^4+3/a-2 * a^5-2/a-2?
回答 (5)
2009-01-09 3:04 pm
✔ 最佳答案
a^4+3/a-2 x a^5-2/a-2=(a^4+3)(a^5-2)
---------------------- answer
(a-2)^2
參考: @(^_^)@
2009-01-09 11:29 pm
May I suggest that your biggest problem is presentation of question. Your question may be read (misread) in many ways.
SHOULD , I suspect, be meant to read as :-
[ ( a^4 + 3 ) / (a - 2) ] [ (a^5 - 2) / (a - 2) ]
( a^4 + 3 ) (a^5 - 2)
----------------------------
(a - 2) (a - 2)
OR , if desired :-
a^9 + 3 a^5 - 2 a^4 - 6
------------------------------
( a - 2 ) ²
SHOULD , I suspect, be meant to read as :-
[ ( a^4 + 3 ) / (a - 2) ] [ (a^5 - 2) / (a - 2) ]
( a^4 + 3 ) (a^5 - 2)
----------------------------
(a - 2) (a - 2)
OR , if desired :-
a^9 + 3 a^5 - 2 a^4 - 6
------------------------------
( a - 2 ) ²
2009-01-09 11:20 pm
(a^4 + 3)/(a - 2) * (a^5 - 2)/(a - 2)
= (a^4 + 3)(a^5 - 2)/(a - 2)^2
= (a^4 + 3)(a^5 - 2)/(a - 2)^2
2009-01-09 11:05 pm
you should really use brackets! because I can't really get the exercise like this>[a^(4+3/a-2)]*[a^(5-2/a-2)]=a^(4+5+3/a-2 - 2/a-2)= a^[9(a-2)+1]/a-2=a^[(9a-17)/a-2]
2009-01-09 11:03 pm
no
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