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What is the product of 2x + y and 5x - y + 3?

 

 Jul 24, 2020
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First   multiply   2 x     *  (5x-y+3)   =   10x^2 - 2xy+6x

  then multiply      y     *  (5x-y+3)   =                5xy        - y^2  + 3y  

 

then add the REDs together......

 Jul 24, 2020

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