Question

Помогите. Я проверяю правильность решения.

Answer 1

(2/3)^2=(2/3)*(2/3)
(1/3)^2-√(4/9)=1/9-2/3=(1-6)/9=-5/9
(2/4)^2+x=5/8
x=5/8-4/16=6/16=3/8

Answer 2

(2/3)²=4/9
(1/3)²-√(4/9)=1/9-2/3=1/9-6/9=-5/9
(2/4)²+x=5/8⇒x=5/8-4/16=10/16-4/16=6/16=3/8