早教吧作业答案频道 -->数学-->
计算:(-3x^n)^3•(-2x^n)^(-2)除以[2x^(-2)]^2+(1/根号2-1)^0.
题目详情
计算:(-3x^n)^3•(-2x^n)^(-2)除以[2x^(-2)]^2+(1/根号2-1)^0.
▼优质解答
答案和解析
(-3x^n)^3•(-2x^n)^(-2)除以[2x^(-2)]^2+(1/根号2-1)^0
=(-27x^3n)•1/(4x^2n)除以[4x^(-4)]+1
=(-27x^3n)•1/(4x^2n)•x^4/4+1
=-27x^(n+4)/16+1
=(-27x^3n)•1/(4x^2n)除以[4x^(-4)]+1
=(-27x^3n)•1/(4x^2n)•x^4/4+1
=-27x^(n+4)/16+1
看了计算:(-3x^n)^3•(-...的网友还看了以下: