Simplify the expression:
7y2−3y+4 7y^2 - 3y + 4 7y2−3y+4
The expression is already in its simplest form as it consists of terms where none can be combined due to differing degrees of the variable y y y. Thus, the simplified expression is: 7y2−3y+4 7y^2 - 3y + 4 7y2−3y+4.