Pls give correct answer
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Answer:
a-(a-b)-b-(b-a)
(a-a-b)-(b- b -a)
-b -b +b -a
-2b + b -a
-b - a
Answered by
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Step-by-step explanation:
1)a-a+b-b-b+a=a-b
2)x square- y square -4x
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