



 
Hi Betty, The terms trinomial, binomial and monomial refer to the number of unlike terms. "tri" indicates 3, "bi" indicates 2 and "mono" indicates 1. For example
However $3x  5x^2 + x$ has three terms but when you collect like terms the expression becomes $4x  5x^2$ so it is a binomial. The terms linear, quadratic, cubic, quartic and so on indicate the highest power of the variable. So for my three examples
Write back if you need more assistance. Penny  


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