1.) 3^+1 ‧7^+1=9261
2.) 2^+3-2^x+1 -24=0
3.) (3^1-x / 27^x+2) ^-2
恒等式
P(x-5)x = (2x-Q)x+x^2 求P及Q的值
2-6/2 +5X+2 =6X-1
收錄日期: 2021-04-15 17:11:54
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20141109000051KK00020