(7m-8n)' - (7m + 8n)2 = ?
6 Simplify (ab+bc)2 - 2ab²c
7 Factories. P2 - 10p +25
8 Factories (a+ b)2 - (a-b)
9 Factories. (a2-2ab+bu)-c-
30 Add the terms. (a-b+ab),(b
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sorry don't know
really really really really really really really really really really sorry
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