Mot so bai tap PT Vo ty ( hot - NVB)

CAC BAI TOAN VE PT BPT VO TY Câu 1.

CAC BAI TOAN VE PT BPT VO TY Câu 1 Giải các phơng trình sau:

A)⁄x+4- vI- x =X1- 2x (x=0)

b) 2X? -2x) + W72x73-s=o (l+5 )

€) Jx-Vx?-1+AVx+VJx =2 (X=1)

đ) vi+4ñ- x? =xa+2V1- x?)( X= 1; x=1/2)

©) (4x - 1) Jax? 471 =8x? +2x+1 (VN)

f) V3x41 =-4x? +13x- 5

g) x°+2 = 393x-2 (X=l;x=-2)

h) Vx+Vx?- x+1- Vx+1+Vš? +x+l =I

(PP ham s6 xét f(x) = Jjj¿+Vx?-x+l+x )

1) V3-x+x?-A2+x-x) =I (X= 1+-V5)/2)

]) V3x-2+Ax-1=4x-9+2N3x-sx+2 (X= 2)

K)⁄2- x=I-vx-1 (x= 1; 2; 10)

O) — =7x?+7x(x>0) (x = (v50-3)/7)

Pp))X'+l=242x-I (x=(-1+5)/2)

q) X¥35- 8 (x +¥35- 0°) =30 (XK = (3 +V5)/2)

l) (Vi- x +V1+x)log, (x? - x) =0 (QG KD 99)

M) Jx-1+2Vx-2-Vx-1-2Vx -2 =1

n) (X+5)(2-x)= 3 Ja? 43x

S) Vx? - 3x43 Fx? - 3x+6 = 3

t) J@+D@- x) =14+2x- 2x?