2a – 4b - 3[a + b + {c - (2a + 3b)}]
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Answer:
Ok
Step-by-step explanation:
= 2a-4b-3[a+b+{-2ac-3bc}]
= 2a-4b-3[-2a^2bc- 3ab^2c]
= 2a-4b+ 6a^2bc+3ab^2c
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