# What is trinomial product?

Answered by Willian Lymon

Trinomial product refers to the result obtained when two binomials are multiplied together. In mathematics, a binomial is a polynomial with two terms, and a trinomial is a polynomial with three terms. When we multiply two binomials, we use a method called FOIL, which stands for First, Outer, Inner, Last.

Let’s take an example to illustrate this. Consider the binomials (x + 2) and (x + 5). To find their product, we start by multiplying the first terms of each binomial, which gives us x * x = x^2. Next, we multiply the outer terms, which are x * 5 = 5x. Then, we multiply the inner terms, which are 2 * x = 2x. we multiply the last terms, which are 2 * 5 = 10.

To obtain the trinomial product, we combine these four terms: x^2 + 5x + 2x + 10. Simplifying this expression gives us x^2 + 7x + 10. Hence, the trinomial product of (x + 2) and (x + 5) is x^2 + 7x + 10.

The FOIL method can be used to find the product of any two binomials. It is a systematic way of ensuring that all possible combinations of terms are multiplied correctly. By following this method, we can avoid any errors and obtain the correct trinomial product.

It’s important to note that not all trinomials can be factored into the product of two binomials. However, trinomials in the form x^2 + bx + c can often be factored in this way. The FOIL method is a useful tool for finding the product of binomials and can be applied to various mathematical problems.

In my personal experience, I have found the FOIL method to be extremely helpful in expanding and simplifying expressions involving binomials. It provides a systematic approach to multiplication and ensures that all terms are considered. This method has been particularly useful when solving quadratic equations and working with polynomial functions.

To summarize, a trinomial product is obtained by multiplying two binomials using the FOIL method. This method allows us to carefully multiply each term in one binomial with every term in the other binomial, resulting in a trinomial expression. While not all trinomials can be factored in this way, the FOIL method is a valuable tool for expanding and simplifying expressions involving binomials.