duōxiàngshìfāngchéngzǔ
ㄉㄨㄛ ㄒㄧㄤˋ ㄕˋ ㄈㄤ ㄔㄥˊ ㄗㄨˇ
Simplified 多项式方程组
Taivo → Settings → Partner inbox → Make the link. It stays in this browser.
Keep 多項式方程組 and it comes back until you know it.