Question

(m + 2n)3 - (m - 2n)3 =
1 6mn (m - 2n)
2 -6mn (m - 2n)
3 m3 - 12mn2
4 16n3 + 12m2n

Answer 1

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(m+2n)³-(m-2n)³

m³ + 2n³ -m³+ 2n³

4n³

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Answer 2

Answer:

(m + 2n)3 - (m - 2n)3

= 3m + 6n - 3m + 6n

= 12n