Stanford University Admission Test Tricks! Find x=? ✍️🖋️📘💙

[@ΙΩΑΝΝΗΣΣΤΑΥΡΟΥΛΑΚΗΣ-ο5π]

( ...) is called parenthesis - ses in prular
Bracket -s is [. ]

[@prollysine]

x^4+/-x^3-4x^2-x+2=0 , (x+1)(x^3-x^2-3x+2)=0 , x^3-x^2-3x+2=0 , ()()=0 , (x-2)(x^2+x-1)=0 , x^2+x-1=0 , x=(-1+/-V5)/2 ,
1 1 1 -2
-1 -1 1 -2 solu , x= -1 , 2 , (-1+V5)/2 , (-1+V5)/2 ,
-3 -3 -1 2
2 2