ab-(bc-ca-(ab-(3b-ac)-(ab-bc)))
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Answer:
3ab - 2bc + 2ac - 3b
Step-by-step explanation:
ab-(bc - ca - (ab-(3b-ac-ab+bc)))
ab-(bc - ca - (ab - 3b + ac + ab - bc))
ab - (bc - ca - ab + 3b - ac - ab + ab)
ab - bc + ca + ab - 3b + ab + ab - ab
3ab - 2bc + 2ac - 3b
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