Các câu hỏi tương tự
Tìm x:
a) 36x3-4x=0
b) 3x(x-2)-2+x=0
c) (x3-x2)-4x2+8x-4=0
d) x2-6x-16=0
e) x4-6x2-7=0
(Mình cần gấp ạ)
Tìm x:
a) 64x5-4x3=0
b) x3-81x=0
c) x(5-3x)-5+3x=0
d) 4x3+12x2-9x-27=0
e) x4-6x2+7=0
Tìm x:
a) 64x5-4x3=0
b) x3-81x=0
c) x(5-3x)-5+3x=0
d) 4x3+12x2-9x-27=0
e) x4-6x2+7=0
Tìm x:
a) x4-25x3=0
b) (x-5)2-(3x-2)2=0
c) x3-4x2-9x+36=0
d) (-x3+3x2-4x) : (\(-\dfrac{1}{2}\)x)=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) (x-3)(x2+3x+9)-x(x2-3)=0
b) 8x4+x=0
d) x3-6x2+8x=0
Tìm x:
a)(3x-7)2=(2-2x)2
b)x2-8x+6=0
c)4x2-2x-1=0
d)x4-4x2-32=0
.Tìm x biết:
a) 3x(x – 2) – x + 2 = 0
b) x3 – 6x2 + 12x – 8 = 0
c) 16x2 – 9(x + 1)2
d) x2 (x – 1) – 4x2 + 8x – 4 = 0
Giải các phương trình sau:
a, x2 - 9x +20 = 0
b, x2 - 3x - 18 = 0
c, 2x2 - 9 x + 9 = 0
d, 3x2 - 8x + 4 = 0
e, 3x3 - 6x2 - 9x = 0
f, x(x - 5) - 2 + x = 0
g, x3 + 32 + 6x +8 = 0
h, 2x(x - 2) - 2 + x = 0
i, 5x(1 - x) + x - 1 = 0
k, 4 - 9(x - 1)2 = 0
l, (x - 2)2 - 36(x + 3)2 = 0