Tìm x
a) x^3 - 16x = 0
b) x^4 - 2x^3 + 10x^2 - 20x = 0
c) (2x - 3 )^2 = (x+5)^2
d) x^2(x-1) - 4x^2 + 8x - 4 = 0
e) x^2 + 4x + 3 = 0
f) x^3 - x^2 = 4x^2 - 8x + 4
g) 2(x+3) - x^2 - 3x = 0
a) \(\frac{1+8x}{8x+4}=\frac{2x}{6x-3}-\frac{8x^2}{3-12x^2}\)
b)(x-2)(x-3)<(x-4)2-2(x+3)
Giải phương trình:
\(\frac{8x^2}{3.\left(1-4x^2\right)}=\frac{2x}{6x-3}-\frac{1+8x}{4+8x}\)
Tìm x biết :
\(\left(8x^2-2x+7\right)\left(4x-6x^2-3\right)=\left(6x^2+3x+4\right)\left(9x-8x^2-6\right)\)
Help me vs !!
Bài 3: Tìm x, biết:
a, \(x^3-16x=0\)
b, \(x^4-2x^3+10x^2-20x=0\)
c, \(\left(2x-3\right)^2=\left(x+5\right)^2\)
d, \(x^2\left(x-1\right)-4x^2+8x-4=0\)
Phân tích đa thức thành nhân tử:
a, 2x4 + 3x3 - 9x2 - 3x +2
b, x4- 3x3- 6x2 + 3x +1
c, x4 - 6x3+12x2 -14x+3
d, x4 - 8x+63
e, x4 - 8x4 -x +12
a)x(x-5)=4x-20
b)4(x+6)-x\(^3-6x^2=0\)
c)x\(^3-5x^2+x-5=0\)
d)\(x^4-2x^3+10x^2-20x=0\)
e)\(\left(2x-3\right)^2=9\left(x-2^2\right)\)
1. x2-8x+16
2.(x+5)(x-5)
3.x3-6x2+12x-8
4.(x+2)(x2-2x+4)
5.x2+2x+1
6.x2-1
Tìm x , biết :
1, x3 - 2x2 - 2x = 0
2, 2x3 - 5x2 + 8x - 3 = 0
3, 3x3 - 14x2 + 4x + 3 = 0
4, x3 + 6x2 - 5x = 0