Squared binomials

The square of a [help] is a polynomial in which there are no [help] terms. It is composed of the [help] of the first monomial plus the [help] product of the [help] monomial and the second one [help] the second monomial raised to the [help] power. Therefore the [help] of how to square a binomial is the following: “ (a + b)² = a² + [help]ab [help] b² “ , in other words the [help] of a squared binomial is a [help].