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A student was asked to find the square of 6x+4. The student quickly wrote (6x+4)^2= 36x^2+16. What error did the student make?

 Sep 18, 2018
 #1
avatar+16481 
+2

36x^2   +  48x    + 16

 Sep 18, 2018
 #2
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Thanks! Also what is the correct answer to the problem?

Guest Sep 18, 2018
 #3
avatar+701 
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36x^2   +  48x    + 16=

4(3x+2)(3x+2)

critical  Sep 18, 2018

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