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    Help with polynomials

    (7x+8)+(-2x+8)

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    +1  Views: 463 Answers: 1 Posted: 12 years ago
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      (7x+8)+(-2x+8)


      You can't add the unknown (7x) to the 8, nor the 2x to the 8, so the (parenthesis) aren't useful here. 
      You CAN add 8 + 8 (16), and you CAN add 2x and 7x ((9x).  That makes the answer 9x + 16 

      12 years ago. Rating: 2
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