Question

4. 2(m + 2n) + 4m + 5(3m - 4n)​

Answer 1

Answer:

2m + 4n + 4m + 15m - 20n

2m + 15m + 4m + 4b - 20n

21m - 16n

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Answer 2

$2(m + 2n) + 4m + 5(3m - 4n) \\ 2m + 4n + 4m + 15m - 20n \\ 2m + 4m+ 15m - 20n + 4n \\ 21m - 24n \\ 3(7m - 8n)$