maddi634 maddi634
  • 20-10-2018
  • Mathematics
contestada

rewrite the rational expression with the given denominator for 7/20y = ?/40y^3

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wegnerkolmp2741o
wegnerkolmp2741o wegnerkolmp2741o
  • 20-10-2018

7            ?

----     =  ------

20 y     40 y^3



to get the denominators to match we need to multiply by 2y^2

what we do to the bottom we do to the top

7*2 y^2

14y^2

7            14y^2

----     =  ------

20 y     40 y^3


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