Question

(m+n+o)(m+n-o)(m-n+o)+(m-n-o)(n-m-o)​

Answer 1

Answer:

$m^3+m^\\2n+m2o−mn2+2mno−mo2−n3+n2o+no2−o3−m2+2mn−n2+o2$

Step-by-step explanation:

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Answer 2

Answer:

m^2+n^2-mo^2+no^2+o^4+mn+nm

Step-by-step explanation:

= m^2+n^2-o^2(m-n-o)+mn+nm+o^2

= m^2+n^2-mo^2+no^2+o^2+mn+nm+o^2

= m^2+n^2-mo^2+no^2+o^4+mn+nm

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