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Algebra Homework Help : Expansion of (a ± b)2


 Expand each of the following and type only the expanded answer in the input box.
Leave no spaces when typing the answer.
EXAMPLE: (2x + 3yz)2 = 4x2+12xyz+9y2z2
Since there are multiple ways of writing an answer, it is possible the computer may mark a correct answer wrong.
So, please always check the explanation.


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1.

(xy - z)2
 
Hint      

2.

(4x + yz)2
 
Hint      

3.

(7x - 2yz)2
 
Hint      

4.

(9 - 2xy)2
 
Hint      

5.

(4x2 - x)2
 
Hint      

6.

(x2 + 6y)2
 
Hint      

7.

(7x + 8y)2
 
Hint      


 
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