An expression 5x2 + 5x + 5 is a binomial.
False
An algebraic expression which contains two unlike terms is called a binomial. For example, 8 + x, xy - 4 are binomials.
An algebraic expression which contains three unlike 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 unlike terms, which are, 5x2, 5x and 5.
Hence the given statement is false.