Question

solve
(m+n)3-(m-n) 3​

Answer 1

Answer:

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

3m-3m+3n+3n

6n

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Step-by-step explanation:

Answer 2

(m-n)2=9

Step-by-step explanation:

1. (m+n)3-(m-n) 3

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

3. (m-n)2 =9