TH1: 2x-1=0
=> 2x= 0+1=1
=> x= 1:2= 0,5
TH2: 5x+2= 0
=> 5x= 0+2= 2
=> x= 2:5 = 0,4
=> 2x-1=0 or 5x+2=0
2x-1=0
x=1/2
5x+2=0
x=-2/5
5x(2x-1/2)+2(2x-1/2)=0
C=(2x-2)(3x+3)<0
D=(3x+1)(2x-2)>0
E=(1-2x)(2+5x)<0
G=2x-1/3x-1>0
H=-2x+1/x-2<0
a , | 4x + 2020 | = 0
b , | 2x + 1/4 | + | -5 | = | -14 |
c , | 2020 - 5x | - | 3 | = - | -8 |
d , | x mũ 2 + 4x | = 0
e , | x-1 | + 3x = 1
g , | 2-3x | + 3x = 2
h , | 5x-4 | + 5x = 4
i , | x - 1/4 | - | 2x + 5 | = 0
k , | 5x - 7 | - | 8-5x | = 0
n , | x mũ 3 - 4x | =0
timx
5x*(2x-1/2) + 2*(2x-1/2)=0
-5x(x+1/5)-1/2x(x-2/3)=3/2
(x+1)x(x-3)=0
(3x-1)x(-1/2x+5)=0
giúp mình tìm x với
5x.(2x-1/2)+2.(2x-1/2)=0
tìm x
a, 3x - 2 < 0
b, 1- 5x > 0
c, ( x-3 ) . ( x + 1 ) > 0
d, -5x^2 + x < 0
e, 6x^2 - 2x > 0
giúp mình nhau
Tìm x biết:
a) 11/15 - (7/9 + x) × 3/8 = 61/90 + x/3
b) (4x + 1)(-2x + 1/3) = 0
c) 5x(2x - 1/2) + 2(2x - 1/2) = 0
Tìm x, biết :
|5x - 4| = |x + 2|
|2x - 3| - |3x + 2| = 0
|5/4. x - 7/2| - | 5/8. x + 3/5| = 0
|7x + 1| - |5x + 6| = 0
