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Lesson 13.2  Skills Practice
page 8
Simplify each expression. Show your work.
65. ​3a​2​ ​4a​3​
66. ​25m​8​ ​7m​2​
​3a​2​  ​4a​3​ 5 (3  ​4)(a​2​  ​a3​ ​)
​25m​8​  ​7m​2​ 5 (25  ​7)(m​8​  ​m2​ ​)
5 ​(12)(a​213
​ )
5 (235)(​m812
​ ​)
5 ​12a​5​
5 ​235m​10​
67. ​(22b)​3​ ​3b​4​
68. ​​(2n​2​)4​ ​
​(22b)​3​  ​3b​4​ 5 ​(22)​3​​(b​3​)  ​3b​4​
​​(2n​2​)​4​ 5 ​(2​4​)(​n2​  4​)
5 ​(22)​3​​(3)(b​3​  ​b4​ ​)
5 ​16n​8​
5 (28)(3)(​b314
​ ​)
52​24b​7​
69. ​​(25mn​3​)2​ ​
70. ​​(4y​3​)2​ ​ ​(23y)​2​
​​(25mn​3​)​2​ 5 ​(25)​2​​(m​2​)(​n3​  2​)
​​(4y​3​)2​ ​  ​(23y)​2​ 5 ​(4​2​)(​​ y3​  2​)(23)​2​​( y​2​)
5 ​25m​2​​n​6​
5 ​​(16)( y​6​)(9)( y​2​)
5 ​144y​8​
​12g​5​
71. _____
​  3 ​ 
 
​2g​ ​
5
72. _____
​ 14h4 ​ 
2h
( 2 )
(  2 )
​12g​ ​ ___
_____
​  3 ​ 5 ​
 
  ​ 12 ​   ​​g​523​
5
​  ___
_____
​ ​14h​ ​​ 5 ​
​ 14 ​  ​​​h​524​
5 ​6g​2​
5 7h
5
​2g​ ​
882      •      Chapter 13      Skills Practice
2h​4
© 2011 Carnegie Learning
5 ​144( y​612
​ )
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