1. 2xy
2x + y
2. 2x+2y-4
3. x+y-(x-y)
4. x+y+3
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2
Answer:
1. (2xy)(2x + y)
=4x²y + 2xy²
or
(2xy)/(2x + y)
=(2xy/2x) + (2xy/y)
=y +2x
2. 2x+2y-4
=2(x+y-2)
3. x+y-(x-y)
=x+y-x+y
=2y
4. x+y+3
=x+y+3
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