ANSWER THIS PLS 50 POINTS
1. (-7xy+x²)+(y²+5xy)
2. (4xy+x²y-5)+(12x²y-5-8xy)
3. (x²-1)+(9+6x+x²)
4. (5xy-x²-4y²)+(7y²-12xy+3x²)
5. (3x²+x-3)+(5-x²-x)
D. 13x²y-4xy-10
A. 2x²+2
T. 2x²-7xy+3y²
E. 2x²+6x-8
N. x²-2xy+y2
1. (-7xy+x²)+(y²+5xy)
2. (4xy+x²y-5)+(12x²y-5-8xy)
3. (x²-1)+(9+6x+x²)
4. (5xy-x²-4y²)+(7y²-12xy+3x²)
5. (3x²+x-3)+(5-x²-x)
D. 13x²y-4xy-10
A. 2x²+2
T. 2x²-7xy+3y²
E. 2x²+6x-8
N. x²-2xy+y2
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Answer:
1. N. x²-2xy+y2
2. D. 13x²y-4xy-10
3. E. 2x²+6x-8
4. T. 2x²-7xy+3y²
5. A. 2x²+2