Parviz F. answered 02/26/14
Tutor
4.8
(4)
Mathematics professor at Community Colleges
It is not clear what the problem is asking for
9 t^2 - 49 = ( 3t + 7 ) ( 3t - 7 )
Tracey K.
asked 02/25/14
Parviz F. answered 02/26/14
Mathematics professor at Community Colleges
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