Alex C.

asked • 02/15/16

How do I multiply 3x+1(x-2)

hello, I need help with multiplying 3x+1(x-2), please show with steps. Thank you

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Oscar A. answered • 02/15/16

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                                                   3x+1
                                                     x-2  
                                                  __________
                                                  3x^2  -6x
                                                            +x   -2
                                              ________________
 
                                                =3x^2-5x-2
 
  Hi Kenneth....Hope this helps!
 
             2/15/16 
 
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Kenneth S.

You assumed that the first plus sign in the expression was an ampersand (&), thus making the problem a "FOIL" job.
 
I took the problem as a SIMPLIFICATION of the stated expression, assuming that the student's point of concern emanated from the coefficient 1 (multiplying 1 times (x-2).
 
We can trace these different understandings (or assumptions) to the poor phrasing of the question. 
 
 
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02/15/16

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