1. x>3 - 12y>3 - 4x>2y>2 +3xy
2. -p>3 (2x-y)>2 + 4p>3 (x+3y)>2
10分Factorization~help
2006-12-19 3:20 am
回答 (1)
2006-12-19 3:49 am
✔ 最佳答案
我估你>係代表次方啦, 不過多數人都會用 ^ 黎表示次方既1.
x^3 - 12y^3 - 4( x^2 )( y^2 ) + 3xy
=x^2 ( x - 4y^2 ) + 3y ( x - 4y^2 )
= ( x - 4y^2 )( x^2 + 3y )
2.
-p^3( 2x - y )^2 + 4p^3( x + 3y )^2
=p^3 [ 4( x + 3y )^2 - ( 2x - y )^2 ]
=p^3 ( 4x^2 + 24xy + 36y^2 - 4x^2 + 4xy - y^2 )
=p^3 ( 35y^2 + 28xy )
=7 p^3 y ( 4x + 5y )
參考: 自己
收錄日期: 2021-04-13 00:02:53
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https://hk.answers.yahoo.com/question/index?qid=20061218000051KK03141