Respuesta :

eunice1234

Answer: -12y²+7y²+20y-7

Step-by-step explanation:

Here, we need to use the concept of the FOIL method

  • First Outer Inner Last

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Given

 (-3y+1)(4y²-y-7)

Expand Parenthesis using FOIL

-12y³+3y²+21y+4y²-y-7

Put like terms together

-12y³+(3y²+4y²)+(21y-y)-7

Combine like terms together

-12y²+7y²+20y-7

Hope this helps!! :)

Please let me know if you have any questions