4 x 2 − 4x = −1
4 x 2 − 4x + 1 = 0
2 x - 1 2 = 0
2x – 1 = 0
x = 1/2
4 x 2 − 4x = −1
4 x 2 − 4x + 1 = 0
2 x - 1 2 = 0
2x – 1 = 0
x = 1/2
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) (x -1)^3+(2-x)(4+2x+x^2)+3x(x+2)=17
B) (x+2)(x^2-2x+4)-x(x^2-2)=15
C) (5x-2)(5x+2)-(5x+3)(5x-4)=8
D) (4x-3)(4x+2)+(4x+5)(1-4x)=2.5^2
Tìm x biết:
(4x - 1)2 - 4(2x - 3)2 - x - 4 = 0
tìm x biết :
4x(x+1) = 8(x+1)
x(2x+1) +\(\dfrac{1}{3}-\dfrac{2}{3}x=0\)
x(x-4) +(x-4)2 =0
Tìm x biết A=x^2(x-1)-4x^2+4=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, (x^2-4x+16)(x+4)-x(x+1)(x+2)+3x^2=0
b, (8x+2)(1-3x)+(6x-1)(4x-10)=-50
1.Tính ( Rút gọn ) :
-4x ( x + 3 ) (x - 4 ) - 3x ( x^2 - x + 1 )
2. Tìm x biết :
a, 4x (x - 5 ) - ( x - 1 ) ( 4x - 3 ) = 5
b, 6 ( x - 3 ) ( x - 4 ) - 6x ( x - 2 ) = 4
GIÚP MK VS , CẦN GẤP A ~~~
Tìm x, biết
(x+ 1)^ 2= 4(x+ 1)^ 2
6x^ 2- x- 2= 0
4x^2+ 4x- 3= 0
2x- 8x^ 2= -21