12. 3 - [x - {2y - (5x + y - 3) + 2x²} - (x2 - 3y)]
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Answered by
0
Answer:
6-10x+4y
Step-by-step explanation:
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Answered by
2
Answer:
6-8x+2x^2+4y
Step-by-step explanation:
Hence,
The answer is 6-8x+2x^2 +4y
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