Question

Tìm x,y biết :

||x-2|-4|=10

|x^2+|x-1||=x^2+2

Answer 1

| x - 2 | | -4 | = 10

=> x - 2 . 4 = 10

x . 4 = 10 + 2

x . 4 =12

x = 12 : 4

x = 3

Answer 2

\(\Rightarrow x-2-4=0\)

\(\Rightarrow x-6=0\)

\(\Rightarrow x=6\)