14X²-2XY+Y²+5XY-2Y²+5+X²+3Y²+7
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Answered by
4
Answer:
Step-by-step explanation:
15X*2+3XY-Y*2+7
Answered by
2
Answer:
15x²+3xy+2y²+12
Step-by-step explanation:
14x²+x²+y²+(-2y²) +3y²+(-2xy)+5xy+5+7
15x²+3xy+2y²+12
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