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2015-06-07T12:01:32+08:00

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I assume you are asking for:      3 ( x² + 7 )

Just distribute them by multiplying 3 each to x² and 7
  
         =  3 (x²) + 3 (7)
         = 3x² + 21

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Thanks :)
Is c = 12n - 5 a linear equation?
Yes, c = 12n - 5 is a linear equation
thanks :) as a student. what is circulatory system for you? pleaaase answer. tysm :)
2015-06-07T13:56:51+08:00
To solve that use distributive property of multiplication simply as this. First, 3 times   is 3 plus  times seven is (equals) = 21. So, the answer is 3+21.  Do not forget that two is the exponent.
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