Posted by Mary on Friday, April 29, 2011 at 6:11pm.
The first term 3x² is correct.
The next term should be
2x-(-5x)=7x
The third term is -4-(-4)=0 (as you had it)
So the answer is 3x²+7x.
You were close.
Thank you math mate
You're welcome!
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