(4а-2а/а+1)*а+1/2а^2=(4а(а+1)-2а/а+1)*а+1/2а^2=
(4а^2+4а-2а/а+1)*а+1/2а^2=(2а(2а+1)/а+1)*а+1/2а^2=
(2а+1)*1/а=2а+1/а
Пошаговое объяснение:
(4а-2а/а+1)*а+1/2а^2=(4а(а+1)-2а/а+1)*а+1/2а^2=
(4а^2+4а-2а/а+1)*а+1/2а^2=(2а(2а+1)/а+1)*а+1/2а^2=
(2а+1)*1/а=2а+1/а
Пошаговое объяснение: