Answers

2014-06-24T20:33:53+08:00
3x(x-2)=_7
3x^ - 2= -7+7
3x^ - 2+7 = 0
3x^+5=0

i hope it helps :)
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2014-06-24T21:46:16+08:00
3x(x-2)=-7
two solution 
x=negative 7 over 3 and x=-9

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