Các câu hỏi tương tự
Tìm x
a) x2 + 3x - ( 2x+ 6) = 0
b) 5x+ 20- x2- 4x =0
c) 3x2- 3x+ 2x3-2x2= 0
d) x3+ 27= -x2+9
Tìm x,biết
a)4x 9x2-1=0
b)(x+2)2 -(x+2)(x-3)=0
c)2x3-4x2+2x=0
d)(x-1)2-(2x+1)2=0
Bài 5. Tìm x, biết:
a) x (2x - 7) + 4x -14 = 0
b) x3 - 9x = 0
c) 4x2 -1 - 2(2x -1)2 = 0
d) (x3 - x2 ) - 4x2 + 8x - 4 = 0
Tìm x
a, 3/4x*(x2-9)=0
b, x3-16x=0
c, (x-1)(x+2)-x-2=0
d, 3x3-27x=0
e, x2(x+1)+2x(x+1)=0
f, x(2x-3)-2(3-2x)=0
tìm x biết
a/ (x - 4)(x + 4)- x(x + 2)=0
b/ 3x(x - 2)- x + 2 = 0
c/ 6x - 12x2 = 0
d/ 4x(3 - x)+(x - 2)(x + 2)= 0
Tìm x
a) 4x(x+1)-x-1 = 0
b) x3-4x2+4x =0
c) x2-3x + 2 =0
tìm x, biết:
a) 9x2+36=0
b) 3(x+4)-x2-4x=0
c) x(2x-1)-(x-2)(2x+1)=0
d) (2x-3)2-4x2=00
e)1 phần 3.x2-3x=0
f) x3-x2-x+1=0
ráng giúp mình nha
1. (x3 – 3x2 + x – 3) : (x – 3) 2. (2x4 – 5x2 + x3 – 3 – 3x) : (x2 – 3) 3. (x – y – z)5 : (x – y – z)3 4. (x2 + 2x + x2 – 4) : (x + 2) 5. (2x3 + 5x2 – 2x + 3) : (2x2 – x + 1) 6. (2x3 – 5x2 + 6x – 15) : (2x – 5)
Bài 2. Tìm x, biết:
a/ (x – 4)(x + 4) - x(x + 2) = 0
b/ 3x(x – 2) – x + 2 = 0
c/ 6x - 12x2 = 0
d/ 4x(3 - 14x) + (x – 2)(x + 2) = 0
Cứu với ạ
Làm tính chia
1) (x3 – 3x2 + x – 3) : (x – 3) 2) (2x4 – 5x2 + x3 – 3 – 3x) : (x2 – 3)
3) (x – y – z)5 : (x – y – z)3 4) (x2 + 2x + x2 – 4) : (x + 2)
| 5) (2x3 + 5x2 – 2x + 3) : (2x2 – x + 1) | 6) (2x3 – 5x2 + 6x – 15):(2x – 5) |