1) 3m
2) 12a
4) -8m²
4) -5x²y²
5) 12a -7b
6) -3a²
7) xz × (xz -z² -x)
8) 9pq -10p -27q
9) -14y
10) 17 (a - b)
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Verified answer
1) 3m
2) 12a
4) -8m²
4) -5x²y²
5) 12a -7b
6) -3a²
7) xz × (xz -z² -x)
8) 9pq -10p -27q
9) -14y
10) 17 (a - b)