\(14\cdot\left(x+1\right)-2x\cdot\left(x+1\right)=0\)
\(\left(x+1\right)\cdot\left(14-2x\right)=0\)
\(\orbr{\begin{cases}x+1=0\\14-2x=0\end{cases}}\)
\(\orbr{\begin{cases}x=-1\\2x=14\end{cases}}\)
\(\orbr{\begin{cases}x=-1\\x=7\end{cases}}\)
Các câu hỏi tương tự
a) -3x=-12
b) x(x+1)=0
c)13-|x|=|-4|
d)35-|2x-1|=14
e)|6-2x|+|y+9|=0
tìm x , y thuộc Z biết :
a, 4.(x +1 ) - (3x-1) = 14
b, (x^2 - 9 ). (x +2 )=0
c,(x^2 + 9 ) . (2x - 4) = 0
d, xy + 2x - y = 2
tìm x , y thuộc Z biết ;
a, 4 .( x+1) - (3x - 1) = 14
b, (x^2 - 9 ). (x+ 2) =0
c, (x^2 +9) . (2x -4) =0
d, xy +2x -y =2
Tìm x
(2x-7)+17=6
12-2.(3-3x)=-2
-14+3.(-x+5)=-20
-90:5.(-3-2x)=6
(x+1).(x-3)=0
(2x-2).(x+4)=0
(22+4).(x+3)=0
(5-x).(6-2x)=0
3.(x+1)+5=x+8
-4.(2x+9)-(-8x+3)-(x+13)=0
(-20.12).(x+3)=0
(2+x).(7+x)=0
104x.(6-x)=0
x^2-3x=0
|2x|-|x-14| 61 với >14
|6-x|.(-8)=-16
A=5.x^3.|x-1|+15 với x=2
B-(x-1)(x+2) với |x|=3
C=(3x-4)(x-6) với (x-1)(x+2)=0
a)(14-x)-12=5
b)(2x+7)+135=0
c)(162+3x)+(x-2)=0
d)720-(3+2x)=1
e)/2x+1/<2
f)2/x=3/15
tìm x
17x – ( -16x – 37) = 2x +
-2x –3. (x – 17) = 34 – 2(-x + 25
17x + 3. ( -16x – 37) = 2x + 43 - 4x
103 -57: [-2. (2x – 1)2 – (-9)0] = -106
3x – 32 > -5x + 1
15 + 4x < 2x – 145
-3. (2x + 5) -16 < -4. (3 – 2x)
-2x + 15 < 3x – 7 < 19 – x
x + (x+1) + (x+2) + (x+3) + .... + 13 + 14 = 14
25 + 24 + 23 +...+ x + (x - 2) + (x – 3) = 25
Tìm x: (2x+1/2)*(3/4-x)=0
Tính nhanh: 2/10*12+2/12*14+2/14*16+...+2/48*50
1, XY = -11
2 , x(x-2)=0
3, (2x+1)y=-14
4, (2y-1)x=-18
giup minh nha