F.2 Factorization

2011-09-29 3:16 am
F.2 Factorization
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[按此打開] [隱藏] I dont know how to do this question:
x^2-12xy+36y^2-x+6y
Can write the step?
Answer is (x-6y)(x-6y-1)

回答 (2)

2011-09-29 3:27 am
✔ 最佳答案

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2011-09-28 20:18:17 補充:
1-x^2+4xy-4y^2
=1-(x^2-4xy+4y^2)
=1-(x-2y)^2
=[1-(x-2y)][1+(x-2y)]
=(1-x+2y)(1+x-2y)
2011-09-29 3:26 am
x^2-12xy+36y^2-x+6y
=x^2-(2)(x)(6y)+6y^2-(x-6y)
=(x-6y)^2-(x-6y)
=(x-6y)(x-6y-1)
參考: me


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