subtract 3a (a-b+c) -2b (a-b-c) from 4c (-a+b+c)
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Answer:
-4ac. +4bc +4c²
3a²-3ab+3ac-2ab+2b²+2bc
Step-by-step explanation:
-3a²+3ab-7ac+2ab-2b²+2bc+4c²
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