Question

сократите дробь.

в числителе а^4/5-b^4/5

в знаменателе a^2/5- b^2/5 

Answer 1

а^4/5-b^4/5       (a^2/5- b^2/5)(a^2/5+ b^2/5)

___________   = __________________________   = a^2/5 + b^2/5

a^2/5- b^2/5                  a^2/5- b^2/5