8 x 3 + 12 x 2 + 6x + 1 = 0
2 x 3 + 3. 2 x 2 .1 + 3.(2x). 1 2 + 1 3 = 0
2 x + 1 3 = 0
2x + 1 = 0
x = (-1)/2
8 x 3 + 12 x 2 + 6x + 1 = 0
2 x 3 + 3. 2 x 2 .1 + 3.(2x). 1 2 + 1 3 = 0
2 x + 1 3 = 0
2x + 1 = 0
x = (-1)/2
tìm x,biết:
a, 3(x-3)-6x=0
b, 2x(x-15)+2x
c, 2(x-3)+3x=9
d, x(x-11)+2(x-11)=0
e,x(x+2)+8=x^2
f, 8(x+1)+2x=-2
g,12-3(x+2)=0
Tìm x biết
a) (x-1).(x+2).(x+3).(x+6)-28=0
b) (x^2+4x+3).(x^2+6x+8)=0
Tìm x , biết :
a. x(x - 2) - 7x + 14 = 0
b, x2(x - 3) + 12 - 4x = 0
c. x2 + 12x - 13 = 0
d. 4x2 - 4x = 8
e. x2 - 6x = 1
Tìm x , biết :
a. x(x - 2) - 7x + 14 = 0
b, x2(x - 3) + 12 - 4x = 0
c. x2 + 12x - 13 = 0
d. 4x2 - 4x = 8
e. x2 - 6x = 1
Tìm x , biết :
a. x(x - 2) - 7x + 14 = 0
b, x2(x - 3) + 12 - 4x = 0
c. x2 + 12x - 13 = 0
d. 4x2 - 4x = 8
e. x2 - 6x = 1
7)(16-8x)(2-6x)=0
8) (x+4)(6x-12)=0
9) (11-33x)(x+11)=0
10) (x-1/4)(x+5/6)=0
11) (7/8-2x)(3x+1/3)=0
12)3x-2x^2=0
TÌM X BIẾT \(\frac{X-1}{X^2-9X+20}+\frac{2X-2}{X^2-6X+8}+\frac{3X-3}{X^2-X-2}+\frac{4X-4}{X^2+6X+5}=0\)
Tìm x biết: c/ x^3+6x^2+12x+8=0
tìm x biết
a,x(x-1)+(x+2)(8-x)=1
b.2x2 -6x =0