I think you meant to write the closing parentheses in a different spot, as:

 

what is the answer to (-5m^7-7m^2+7m)/m and how​

 

Taking the divisor inside the brackets, this can be written as:

 

-(5m⁷÷m) - (7m²÷m) + (7m÷m)

 

= -5m⁶ - 7m + 7

 

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