1. What should be subtracted from -2ab-9bc +3ac to get -11ab-bc+5ac 2. What should be added to-100bc+5ac-2 to get -98bc-ac+1
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Answer:
Step-by-step explanation:
1. -2ab-9bc+3ac - (-11ab-bc+5ac)
= -2ab-9bc+3ac + 11ab+bc-5ac
= 9ab-8bc-2ac
2. -98bc-ac+1 - (-100bc+5ac-2)
= -98bc-ac+1 + 100bc-5ac+2
= 2bc-6ac+3
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Answer:
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