Meaning of teakwondon belt
korean fighter

Black belts are divided into Danes, which are in ascending order. 1-3 Dan corresponds to the title of "assistant instructor", 4-6 - "instructor", 7-8 - "master" and 9 - "grandmaster". The color of snow, the birth of life, the beginning of a new year, a clean slate on which the first lines of taekwondo have yet to be written.

ответ:

пошаговое объяснение:

(5у-4х)=(25у²+20ух+16х²)

(5р-2с⁴)(25р²+10рс⁴+4с⁸)=125р³-8с¹²