Respuesta :

w to the 2nd power -4w-21
i couldn't type it in so hopefully you know what I mean
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Answer: w^2-4w-21
Explanation: (w-7)(w+3)
=(w)(w)+(w)(3)+(-7)(w)+(-7)(3)
=w^2+3w-7w-21
=w^2-4w-21

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