Factorize the following expressions:
(1) 4x^2 + 12xy + 9y^2
(2) 4x^2 - 12xy + 9y^2
Hence, factorize (4x^2 + 12xy + 9y^2) (4x^2 - 12xy + 9y^2) - 9x^4
F.2 Maths - Please Help!!
2009-03-09 6:29 am
回答 (1)
2009-03-09 6:41 am
✔ 最佳答案
(1) (2x+3y)^2(2) (2x-3y)^2
(3) (4x^2 + 12xy + 9y^2) (4x^2 - 12xy + 9y^2) - 9x^4
=(2x+3y)^2 X (2x-3y)^2 - 9x^4
= (4x^2-9y^2+3x)(4x^2-9y^2-3x)
參考: myself
收錄日期: 2021-04-23 20:29:45
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