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ppt alg2 henrico module polynomials

ppt alg2 henrico module polynomials

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    Presentation5 1 Presentation5 1 Presentation Transcript

    • Exponents and Monomials
    • Monomial is an expression that is anumber, a variable, or a product of anumber and variables.Constant is a monomial containing novariables.Coefficient is a numerical factor of amonomial.Degree is the sum of the exponents of amonomial’s variables.Power is the expression of the form xn.
    • Laws of Exponents 1Negative Exponents: a −n = n a 1 a −n =a n m +nMultiplying Powers: a g a = a m n
    • Laws of Exponents m a m −nDividing Powers: n =a aPower of a Power: (a ) =a m n mn ( ab ) mPower of a Product: =a b m m
    • Laws of Exponents n n a aPower of a Quotient:   = n  b b −n n b a   = bn aPower of Zero: a = 1 0
    • Examples using the laws of exponents:1. (2ab )(−3a b c ) = −6a b c 2 4 2 5 42. (6x y2 3 )(−xyz ) = −6x y z 3 4 12 x3. 4 = x 8 x
    • −10x y 2 44. 4 = −2x 5xy5. (x )= x 2 4 86. (−2a b ) = 16a 3 2 4 12 8 b
    • 2  3x y  3 n7.  5 3n 2  x y z  2  3  9=  2 2n 2  = 4 4n 4 x y z  x y z
    • −3 3 3  4  n n8.   = =  4  64 n −3 −3  3x y   x  3b 2b9.  b 3 =  2  −6x y   −2y  2 3  −2y  −8y 6 =  2b  = 6b  x  x