Answers

  • zzz
  • Helping Hand
2014-07-07T17:18:46+08:00
(2x - 4) - (3x + 1) <---- this can be expressed as follows
(2x - 4) - 1(3x + 1)  <----- now distribute the -1
[3x time -1 is -3x, 1 times -1 is -1]
(2x - 4) -3x - 1 <---- just remove the parenthesis in this case
2x - 4 - 3x - 1 <---- combine the like terms [2x and -3x ; -4 and -1]
[2x + 3x is 5x][-4 plus -1 is -5]
5x - 5 <--- this is your final answer
0
2014-07-07T20:07:02+08:00
(2x-4)-(3x+1)
the same in
2x-4-3x-1
because it is not a term using foil method
then combine like terms
the answer is = -x -5
hope it will help ^_^
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