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Can Someone Help ?

 

 Jul 27, 2020
 #1
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There wil be   a  15 x^4   when the first terms are multiplied.....rules no choices out

   there will be a -15   when the constants are multiplied   so it is B or D

     when the x tems are multiplied by the constants  there will be a - 10x  and a - 12x = - 22x    so answer  B

 Jul 27, 2020

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