Verified Answer :

Solutions 

2x−4y+3x²+7y−16x

=2x+−4y+3x²+7y+−16x

Combine Like Terms:

=2x+−4y+3x²+7y+−16x

=(3x²)+(2x+−16x)+(−4y+7y)

=3x²+−14x+3y

2x-4y+3\(x^{2}\)+7y-16x
3\(x^{2}\)+2x-16x-4y+7y
=3\(x^{2}\)-14x+3y