化簡math〔10點〕

2008-02-10 4:10 am
化簡:
1. 9^2x.3^x/3^2x-1
2. 4^2x-1‧2^2x/2^3x-1.4
3. 4^m+2^m/2^m+1
4. ^4開方16x^8 [[正指數表示答案]]
5. ^2開方a.^3開方a [[正指數表示答案]]
6.3a^0/^3開方a [[正指數表示答案]]

最好就有明確既步驟喇...可以明白點做 @_@"
HAPPY NEW YEAR

回答 (1)

2008-02-10 5:41 am
✔ 最佳答案
1 =3^4x. 3^x . 3^1-2x

=3^4x+x+1-2x

=3^3x+1

2 =2^4x-2+2x+1-3x+2

=2^3x+1

3 = 2^2m+m-1-m

=2^2m-1

4 = (2^4.x^8)^1/4

=2x^2

5 = a^1/2.a^1/3

=a^1/2+1/3

=a^5/6

6 = 3a^0/a^1/3

=3/a^1/3


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