(5m3+3m2-2m)+(5m3+3m2-2m)+(8m3-4m2+3m)
What is the perimeter of the triangle?
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The perimeter of the triangle is the sum of its sides,
1. The m3 are added
5m3 + 5m3 + 8m3 = 18 m3
2. The m2 are added
3m2 +3m2 -4m2 = 2m2
3. The m are added
-2m -2m +3m = -m
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Answer
The perimeter of the triangle is 18m3 + 2m2 -m = m (18m2 + 2m - 1)
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