JustoCash
JustoCash JustoCash
  • 20-09-2017
  • Mathematics
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How to solve this alagbri ?

How to solve this alagbri class=

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choixongdong
choixongdong choixongdong
  • 20-09-2017
15)
4(a+b) + 12 
= 4a + 4b + 12
= 4(a +b + 3)

answer is 
b) 4(a +b + 3)


16)
x - 4(2x + 2)
= x  - 8x - 8
= -7x - 8

answer
-7x - 8
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