Question

Розкрийте модуль |-х^4-2|

Answer 1

$|-x^4-2|=|-1cdot (x^4+2)|=|-1|cdot |underbrace {x^4+2}_{>0}|=1cdot (x^4+2)=x^4+2$

Answer 2

https://znanija.com/task/32337813