To simplify the expression 7x², we need to understand what it represents. The expression consists of two parts: the coefficient (7) and the variable term (x²).
In this case, 7 is simply multiplied by x squared. Since there are no like terms or factors to combine here, the expression 7x² is already in its simplest form. We can’t simplify it further without additional context or information.
If we were to substitute a value for x, we could calculate a specific number, but as it stands, 7x² represents a polynomial expression where 7 is multiplied by the square of x.