Question

Сократите дробь

m͟͟4-n4/m2-n2

Answer 1

$frac{m^4-n^4}{m^2-n^2}=\\frac{(m^2)^2-(n^2)^2}{m^2-n^2}=\\frac{(m^2-n^2)(m^2+n^2)}{m^2-n^2}=\\m^2+n^2$

Answer 2

$frac{m^4-n^4}{m^2-n^2}=frac{(m^2-n^2)(m^2+n^2)}{m^2-n^2}=m^2+n^2$