Trinomials are polynomials with three terms.
ie. x2+2x+1
Try certain physics problems in kinematics without the factoring skill picked up in algebra.
This can't be explained in a few words. Basically you check the different special cases, mentioned in a school algebra course: whether there is a common factor, whether a binomial is a difference of squares, etc. Check a high school algebra book for more details.
Try wolframalpha.com.
trinomials,biomials,monomials
Trinomials, Binomials and Monomials
x+3y+9
Yes, it can.
Most of us do not know who "invented" factoring trinomials, many do not even care. Factoring is just one of the axioms that an algebra system establishes. If you really want to know, try searching on Google.
A+BC+a,-5bc-2a+2a
Trinomials help model data and organize in realistic situations, such as economic marketing, forecasting weather, manufacturing and mixture and dimension problems.
A binomial has two terms, while a trinomial has 3 terms. So both terms of the binomial will multiply each term of the trinomial (distribution property). After the multiplication you'll have 6 terms. Look for like terms, if there are, combine them.
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