9-x²+2xy-y²
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Answered by
3
Answer:
Hii mate
explanation: 9-( x²-2xy+y²). 9-(x-y)². 3²-(x-y)². this is in the form a²-b². so the factors are (3+x-y) (3-x+y). 4.4.
Answered by
1
Answer:
don't know year I'm so sorry
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