simplify the following expressins
3^x乘81^x/9
S.2 maths urgent!!!
2009-10-25 6:42 pm
回答 (1)
2009-10-25 6:56 pm
✔ 最佳答案
(3^x)(81^x)/9= (3^x)[(3^4)^x]/(3^2)
= (3^x)(3^4x)/(3^2)
= 3^(x + 4x - 2)
= 3^(5x-2)
收錄日期: 2021-04-23 23:26:43
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