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Answer:
a) 8(b-4)
b)-2p^2-9pq+6q^2
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Answer:
11.
28b - 20b -32
12.
-2p²-9pq+6q²
Step-by-step explanation:
11.
21b -32
+ 7b - 20b
__________
28b - 20b -32
12.
p²-7pq- q²
+ -3p²-2pq+7q²
____________
-2p²-9pq+6q²
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