(a)6a+24b
(b)12u-20uv
(c)d(d-5)+7(5-d)
(d)ab+ac+bd+cd
[簡單任務]4條因式分解
2012-08-27 4:42 am
回答 (3)
2012-08-27 4:52 am
✔ 最佳答案
(a)6a+24b=6(a+4b)
(b)12u-20uv
=4u(3-5v)
(c)d(d-5)+7(5-d)
=d(d-5)-7(d-5)
=(d-5)(d-7)
(d)ab+ac+bd+cd
=a(b+c)+d(b+c)
=(b+c)(a+d)
參考: me
2012-08-28 6:17 am
(a)6(24b)+a(24b)
=144b+24ab
(b)12(-20uv)+u(-20uv)
=-240uv-20u^2v
(c)d^2-5d+35-7d
=d^2-12d+35
(d)a^2+b^2+c^2+d^2
=144b+24ab
(b)12(-20uv)+u(-20uv)
=-240uv-20u^2v
(c)d^2-5d+35-7d
=d^2-12d+35
(d)a^2+b^2+c^2+d^2
參考: 我
2012-08-27 8:16 pm
(a)
6a+24b
=6(a+4b)
(b)
12u-20uv
=2u(6-10v)
=4u(3-5v)
(c)
d(d-5)+7(5-d)
=d(d-5)-7(d-5)
=(d-5)(d-7)
(d)
ab+ac+bd+cd
=a(b+c)+d(b+c)
=(b+c)(a+d)
6a+24b
=6(a+4b)
(b)
12u-20uv
=2u(6-10v)
=4u(3-5v)
(c)
d(d-5)+7(5-d)
=d(d-5)-7(d-5)
=(d-5)(d-7)
(d)
ab+ac+bd+cd
=a(b+c)+d(b+c)
=(b+c)(a+d)
收錄日期: 2021-04-20 13:13:35
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20120826000051KK00633