作业帮12(3a+5b)^12*(3a-5b)^4÷[3(3a+5b)^4*(3a-5b)]^3
来源：学生作业帮助网 编辑：作业帮 时间：2024/07/14 14:27:17
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12(3a+5b)^12*(3a-5b)^4÷[3(3a+5b)^4*(3a-5b)]^3
12(3a+5b)^12*(3a-5b)^4÷[3(3a+5b)^4*(3a-5b)]^3
12(3a+5b)^12*(3a-5b)^4÷[3(3a+5b)^4*(3a-5b)]^3
12(3a+5b)^12*(3a-5b)^4÷[3(3a+5b)^4*(3a-5b)]^3
= 12(3a+5b)^12*(3a-5b)^4÷[3^3*(3a+5b)^(4*3)*(3a-5b)^3
= 12(3a+5b)^12*(3a-5b)^4÷[27*(3a+5b)^12*(3a-5b)^3]
= (12/27)*(3a+5b)^(12-12)*(3a-5b)^(4-3)
= (12/27)*(3a+5b)^0*(3a-5b)^1
= (4/9)*1*(3a-5b)
= (4/9)*(3a-5b)
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以上,希望对你有所帮助.