初一数学练习册下同底数幂的除法第9题[(x+y)^2n]^4÷(-x-y)^2n+1

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初一数学练习册下同底数幂的除法第9题[(x+y)^2n]^4÷(-x-y)^2n+1

[(x+y)^2n]^4÷(-x-y)^2n+1
=(x+y)^8n÷[(x+y)^2n×(-x-y)]
=(x+y)^6n÷(-x-y)
=-(x+y)^(6n-1)

[(x+y)^2n]^4÷(-x-y)^2n+1
=(x+y)^8n÷[(x+y)^2n×(-x-y)]
=(x+y)^6n÷(-x-y)
=-(x+y)^(6n-1)