The expression 5x2 + 5x + 5 is a binomial.
False
An algebraic expression which contains two terms is called binomial. For example, 8 + x, xy - 4, etc.
An algebraic expression which contains three terms is called trinomial. For example, 8 + x + y, xy - 4x + y, etc.
So, the expression, 5x2 + 5x + 5, is a trinomial as this expression contains three terms i.e.,5x2, 5x and 5.