. What should be added to 4c (a + b + c) to get 3a (a + b + c) - 2b (a - b + c)?
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. What should be added to 4c (a + b + c) to get 3a (a + b + c) - 2b (a - b + c)?
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Step-by-step explanation:
first simplify what you want to get
3a(a+b+c) - 2b(a - b + c)
3a² + 3ab + 3ac - 2ab + 2b² - 2bc
3a² + 2b² + ab + 3ac - 2bc --eq1
what we have?
4c(a + b + c)
4ac + 4bc + 4c²
to add to get eq1
4ac + 4bc + 4c² ( -3a² -2b² -ab -ac -6bc)
answer in bold in last line
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