Working with monomials and polynomials

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Presentation transcript:

Working with monomials and polynomials Sem 2 – 02/05/16 Working with monomials and polynomials

Consider the expression x2+2xy+3 Must know these: Consider the expression x2+2xy+3 Monomial Polynomial the term the sign the coefficient the base the exponent

Monomials A monomial is a number, a variable or a product of a number and a variable where all exponents are whole numbers. 42, 5x, 14x12, 2pq, 4+y, 5y, 14x ,2pq−2 Monomial Not a Monomial

Degree of the Monomial

Binomial , Trinomial, Polynomial Adding/ subtracting the Monomial 2 terms - binomial 3 terms - trinomial Many terms - Polynomial Binomial Trinomial Polynomial

Expression What kind of - mial ? Degree Sign of first term Base of first term Coefficient of first term Exponent of first term

Our Rule for Multiplying Monomials Together “When we multiply, we take care of signs first then we multiply just the numbers and then we add the exponents.” Memorize this!!!

So what does it mean… “When we multiply, we take care of signs first then we multiply just the numbers and then we add the exponents.”

Multiplying Monomials –do these