tìm x biết
a)4x^2+4x-3=0
b)x^4-3x^3-x+3=0
c)x^2(x-1)-4x^2+8x-4=0
tìm x biết
a)4x^2+4x-3=0
b)x^4-3x^3-x+3=0
c)x^2(x-1)-4x^2+8x-4=0
tìm x, biết:
a) x3-4x2+4x=0
b) 2(x+3)-x2-3x=0
c) (2x-5)(x+2)-2x(x-1)=15
d) x(8x-2)-8x2+12=0
Tìm x, biết:
a) ( x 2 - 4x + 16)(x + 4) - x(x + l)(x + 2) + 3 x 2 = 0;
b) (8x + 2)(1 - 3x) + (6x - l)(4x -10) = -50.
Tìm x biết
A, 3x^2+8x+4=0
B, 4x^2-4x-3=0
Tìm x biết:
a, 16x² – 9(x + 1)²= 0
b, x2 (x – 1) – 4x2 + 8x – 4 = 0
c, x(2x – 3) – 2(3 – 2x) = 0
d, (x – 3)(x² + 3x + 9) – x(x + 2)(x – 2) = 1
e, 4x² + 4x – 6 = 2
f, 2x² + 7x + 3 = 0
tìm x biết
a) (6x-3) (2x+4) + (4x-1) (5-3x) = -21
b) 6x (3x+5) - 2x (9x-2) + (17-x) (x-1) + x (x-18) =0
c) (15-2x) (4x+1) - (13-4x) (2x-3) - (x-1) (x+2) + x2=52
d) (8x-3) (3x+2) - (4x+7) (x+4) = (2x+1) (5x-1) - 33
tìm x
2(x+3)-x^2-3x=0
2x(3x-5)=10-6x
x^3-x^2=4x^2-8x+14
a,(x^2-4x)^2-2(x^2-4x)=15
b,(x^2-3x)^2-2(x^2-3x)-8=0
c,(x^2-4x+3)(x^2-8x-9)=0
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