in factorizing the expression a^4+a^2b^2+b^4

[匿名]

2007-10-07 2:41 am

in factorizing the expression a^4+a^2b^2+b^4,
中文姐係因式分解 a^4+a^2b^2+b^4

竟然唔記得左點做li d 數....

回答 (2)

sr

2007-10-07 5:38 am

✔ 最佳答案

a4+a2b2+b4
=a4+2a2b2+b4-a2b2
=(a2+b2)2-(ab)2
=(a2+ab+b2)(a2-ab+b2)

參考: ME

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venus

2007-10-07 2:46 am

a^4+a^2b^2+b^4
=4a^3+2a(2b)+4b^3
..........

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