x3 - 4x2 - 8x + 8 = 0
x3 + 2x2 - 6x2 - 12x + 4x + 8 = 0
\(x^2\left(x+2\right)-6x\left(x+2\right)+4\left(x+2\right)=0\)
\(\left(x+2\right)\left(x^2-6x+4\right)=0\)
\(x+2=0\)
\(x=-2\)
Tìm x , biết :
a) (x-2)3 - 6(x+1)2 - x3 + 12 = 0
b) x3 - 6x2 + 12x - 8 = 0
c) 8x3 - 12x2 + 6x - 1 = 0
Tìm x
(x-2) (x2+2x+4)-19=0
(6x-1) (6x+1)-15=0
tìm số m để biểu thức sau viết dưới dạng (A+B)2
x2+7x-2+m
9x2-6x-2m+3
16x2-8x+m
x2+10x-m+1
giai PT
a,(y-1)2=9
b,(x-4)2-25=0
c,(x-3)2-(x-1)2=0
d,(3x-7)2-4(x+1)2=0
e,2x(x-5)-x(2x+3)=26
f,5x(x-1)=x-1
g,x3+2x-3=0
h,x3-5x2+8x-4=0
i,x3-7x+6=0
k,x3-9x2+6x+16=0
giai PT
a,(y-1)2=9
b,(x-4)2-25=0
c,(x-3)2-(x-1)2=0
d,(3x-7)2-4(x+1)2=0
e,2x(x-5)-x(2x+3)=26
f,5x(x-1)=x-1
g,x3+2x-3=0
h,x3-5x2+8x-4=0
i,x3-7x+6=0
k,x3-9x2+6x+16=0
giai PT
a,(y-1)2=9
b,(x-4)2-25=0
c,(x-3)2-(x-1)2=0
d,(3x-7)2-4(x+1)2=0
e,2x(x-5)-x(2x+3)=26
f,5x(x-1)=x-1
g,x3+2x-3=0
h,x3-5x2+8x-4=0
i,x3-7x+6=0
k,x3-9x2+6x+16=0
Tìm x :
a) x(x - 1 ) = 0
b) 3x^2 - 6x = 0
c) x( x - 6 ) + 10( x - 6 ) = 0
d) x^3 - x = 0
Tìm x,biết :
a) 2x^2-7x+5=0
b) x(2x-5) - 4x+10=0
c) (x-5)(x+5) - x(x-2)=15
d) x^2(2x-3) - 12+8x=0
e) x(x - 1)+5x - 5=0
f) (2x-3)^2 - 4x(x - 1)=5
g) x(5 - 2x)+2x(x - 1)=13
h)2(x+5)(2x - 5)+(x - 1)(5 - 2x)=0
tìm x biết
a, x(2x-7)-4x+14=0
b, x(x-1)+2x-2=0
c, 2x^3+3x^2+2x+3=0
d, x^3+6x^2+11x+6=0
1:tim x
a,x(x-5)-4x+20=0
b,x(x+6)-7x-42=0
c,x3-5x2+x-7=0
d,x2-9x+8=0
g,3x2-5x+2=0
