Question 167589
A binomial expression is simply an expression that is the sum (ie result of addition) of <font size="4"><b>TWO</b></font> monomials.



Now what is a monomial? A monomial is simply an expression that is the product of number (a coefficient) and variable term(s) (either one or more variable terms). 


So for instance, we could have a coefficient of 2 and a variable term of "x", and the monomial would be 2*x or just 2x. Another example might have a coefficient of 10 and have the variable terms {{{x^2y}}} (you can have exponents) to get the monomial {{{10x^2y}}}



Now using the two previous monomials, the binomial expression is {{{2x+10x^2y}}}



Another binomial expression is {{{3xy+5z}}} and another is {{{7y-14x}}}.