0.3^11*7^13分之2.1^100*3^10 - 知识问答

0.3^11*7^13分之2.1^100*3^101

2个回答

0.3^11*7^13分之2.1^100*3^101
=2.1^100*3^101/[0.3^11*7^13]
=2.1^100*3^101/[0.3^11*7^11*7^2]
=2.1^100*3^101/[(0.3*7)^11*7^2]
=2.1^(100-11)*3^101/7^2
=2.1^(89)*3^101/7^2
=0.3^(89)*7^(89)*3^(101)/7^2
=0.3^(89)*7^(87)*3^(101)

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