on simplify - 2 x to the power 2 + 7 x minus 3 plus x to the power 2+7 we get

Your question is not clear and appears to be incomplete. But assuming your question to be " Simplify 2x²+7x-3+x²+7, we get"
Here is the answer accordingly:
2x²+7x-3+x²+7 
=3x²+7x+4
=3x²+3x+4x+4
=3x(x+1)+4(x+1)
=(x+1)(3x+4)

If this was not what you had in mind then please repost the correct and clear query in this thread, our expert would be happy to help you there.

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