하버드 수학문제 풀어봐

[익명(1.240)]

예압

- dc official App

[수갤러 1(180.67)]

https://www.wolframalpha.com/input?i=2%5EX+%2BX%3D5

[1/+(gckim250)]

x = 5-W[32 ln 2]/ln 2, 약 1.71562