2X −16 ( √ √ X X + +2 4 −1 ) = √ X−16 X +2 . √ X 2 +2 =X −16

2/ - DE THI DAP AN MON TOAN VAO 10 HA NOI 2012 2013
DE THI DAP AN MON TOAN VAO 10 HA NOI 2012 2013

2/

2

x −16 ( √ √ x x + +2 4 −1 ) = √ x−16 x +2 . √ x 2 +2 =

x −16