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1)Simplify x1+y1x+y

2)Simplify x1y1xy

3)Simplify x2+y2x+y

4)Simplify x2y2xy

These questions are 'created' by my teacher, I find this kind of funny and want to share this to you!! :D

 Sep 5, 2016

Best Answer 

 #4
avatar+118696 
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Very impressive Max :D

 Sep 5, 2016
 #1
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Thanks Max :))

 Sep 5, 2016
 #3
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:) 

:)

:)

MaxWong  Sep 5, 2016
 #2
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I would like you to share your answers to these questions.

I will go first :)

1) x1+y1x+y=(x1+y1)(xy)(x+y)(xy)=y+x(x+y)(xy)=1xy

2)x1y1xy=(x1y1)(xy)(xy)(xy)=(xy)(xy)(xy)=1xy

3)x2+y2x+y=1x2+1y2x+y=x2+y2(xy)2x+y=x2+y2(xy)2(x+y)

4)x2y2xy=(x1+y1)(x1y1)xy=x1y1xy(x1+y1)=x1+y1xy

The last step of 4) is from 2)!!

 Sep 5, 2016
 #4
avatar+118696 
+5
Best Answer

Very impressive Max :D

Melody Sep 5, 2016
 #5
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Why are you guys so good at math :( LOL

 Sep 5, 2016
 #6
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Because this is the maths forum!! :D Welcome because you just signed up!! :D

MaxWong  Sep 5, 2016

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