Factor fully, if possible.
Show all the steps
1) x^2-5xy+9y^2
2)a^4-14a^2+36
3) 4x^4-24x^2y^2+36y^4
Thakns
Factoring Special Quadratics
2012-11-26 5:43 pm
回答 (3)
2012-12-04 5:03 pm
✔ 最佳答案
a^4 - 14a^2 + 36= a^4 - 12a^2 + 36 - 2a^2
= (a^2 - 6)^2 - 2a^2
= (a^2 + sqrt(2)a - 6)(a^2 - sqrt(2)a - 6)
4x^4 - 24x^2y^2 + 36y^4
= 4(x^4 - 6x^2y^2 + 9y^4)
= 4(x^2 - 3y^2)^2
(1) DON'T KNOW
參考: knowledge
2012-12-11 10:33 pm
肯定没有打错！！！！
2012-11-28 10:12 am
1) and 2) cannot be factorized.有沒有打錯?
3) 4x^4-24x^2y^2+36y^4
4(x^4-6x^2y^2+9y^4)
4(x^2 - 3y^2)(x^2 - 3y^2)
3) 4x^4-24x^2y^2+36y^4
4(x^4-6x^2y^2+9y^4)
4(x^2 - 3y^2)(x^2 - 3y^2)
收錄日期: 2021-04-11 19:13:54
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20121126000051KK00067