+0  
 
0
28
1
avatar

Find all real numbers x such that
(3^x - 27)^3 + (27x - 3)^3 = 3x + 27x - 30.

 Dec 30, 2022
 #1
avatar+105 
+1

Here's a tip, go to this link:
 

https://web2.0calc.com/questions/algebra_55659

 

Beautiful answer by @CPhill

 Dec 30, 2022

28 Online Users