Bài 1 Cho biểu thức
P= (-4-1-16-1) 447
3√x-3 (√xx; x+x)
a Rut gan p
b, Tius P-ti x thea man 19-21=2
Timx de P=3
Bar 2. Ve to thi y = 1/2 x
Bar 3. Cho (0;5um) at way Kich AB. Tien
die tron (0) lay tiem ( Seo Cho AC= 6cin-
ke² CH LAB taiH, CH cat (0) tai D
а, тив ан
6 Time CD.