4.3b & 4 Rr

4.3b & 4 Rr

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  Agenda Thursday, Nov.12 homework 4 p. 193 # 21 - 24, 34 - 40 and p. 198 # 13 - 23 Quiz tomorrow on Ch. 4.1 - 4.4 (see checkpoint quiz p. 199 for sample problems) 4.3 - prime factorization with variable expressions 4.4- simplifying fractions
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  Find the GCFof a variable expression. Find the prime factorization of the coefficient. Write the variables in expanded form. Find common factors. Example 8xy 2 and 6x 3 y 2*2*2*x*y*y 2*3*x*x*x*y GCF = 2xy
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  Prime Factors of4a 3 b Prime Factors of 6a 2 b 2 4a 3 b = 2*2*a*a*a*b 6a 2 b 2 = 2*3*a*a*b*b Find the prime factorization of each variable expression. Use the diagram below to show the prime factors. Then use it to find the GCF.
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  Directions: UseVenn diagrams to find the GCF of each set of numbers. 1) 4xy 2 , 2x 2 y GCF = 2xy 2) 6a 2 b 2 , 4ab 3 GCF = 2ab 2 3) 10m 3 n, 15m 2 n 2 GCF = 5m 2 n
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  Find two fractionsthat are equivalent to 5 8 5 8
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  Write in simplestform: 6 8
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  To write algebraicfractions in simplest form, first write the prime factorization of the expression. Then divide the numerator and denominator by the common factors. 9 x 3*3*x 3xy 3*x*y 4ab 2 2*2*a*b*b 16ac 2*2*2*2*a*c
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  Now you try:Complete Quick Check 3 on p. 197
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