3. Simplify.
(a) 27m +(-35m) + 8m2
(b) -17xy + 3xy - 12xy
(c) 2xyz+3yzx-5zxy
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a) in the attachment
b) -26xy
c) 0
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Answer:
(a) 27m+(-35m)+8m2
-27m+(35m)+8m2
-27m+35m+8m2
8m+8m2
=8m2+8m
(b)-(17xy+12xy)+3xy
-(29xy)+3xy
=-26xy
(c)2xyZ+3xyZ-5xyZ
5xyz-5xyz
=0
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