請列所有的步驟
把下列的數分解為因式
恆等式~~~
2007-12-09 8:27 pm
回答 (2)
2007-12-09 8:38 pm
✔ 最佳答案
23.(a)左方=x^2 +4x+4比較同類項
A=1
-(A+B)=4
-A-B=4
-1-B=4
B=-5
(e)
144(y-x)^2 +96(x-y)+16
=144(x-y)^2 +96 (x-y)+16
=16 [9(x-y)^2+6(x-y)+1]
=16[3(x-y)+1]^2
=16(3x-3y+1)^2
2007-12-09 8:55 pm
23.(a)
A=1
-(A+B)=4
-A-B=4
-1-B=4
B=-5
(e)
144(y-x)^2 +96(x-y)+16
=144(x-y)^2 +96 (x-y)+16
=16 [9(x-y)^2+6(x-y)+1]
=16[3(x-y)+1]^2
=16(3x-3y+1)^2
A=1
-(A+B)=4
-A-B=4
-1-B=4
B=-5
(e)
144(y-x)^2 +96(x-y)+16
=144(x-y)^2 +96 (x-y)+16
=16 [9(x-y)^2+6(x-y)+1]
=16[3(x-y)+1]^2
=16(3x-3y+1)^2
參考: 做過的
收錄日期: 2021-04-29 19:40:30
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20071209000051KK01392