Tìm x :(x-2)(2x +1)-5(x +3)=2x(x-3)+4(1+2x)-2(1+x)
Ai nhanh mình tick lời giải chi tiết nha
a) 1/3 + 2/3 : x = -7
b) 1/3 x + 2/5 (x-1)= 0
c) (2x-3).(6 - 2x)=0
tim STN x biet
a, 21 thuoc B(x-3)
b, 1-x thuoc U(17)
c, 2x+3 thuoc B(2x-1)
d, x+1 thuoc U(x mu 2+x+3)
e, 3x+1:11-2x
2x-3=3x+1
x+(-2)=3-x
3-2x=4-x
Tìm x biết :
a) (x+1)(3-x) > 0
b) (2x-3)+4-x) <0
c) (x + 1/3 )(2/3 - 2x) = 0
Tìm x:
a) 2x(x-5)-x(3+2x)=26 b) (x-1)(2x-1)-(x+8)(x-1)=0
Tìm x:
a) 2x(x-5)-x(3+2x)=26 b) (x-1)(2x-1)-(x+8)(x-1)=0
c) (2x+1)2 = (x-1)2 d) (x2-9)(x+3)=0
a) 3/4-2.|2x-2/3|=2
b) -5.(x+1/5)-1/2.(x-2/3)=3/2x-5/6
Tìm x :
\(\frac{7^{x+2}+7^{x+1}+7^x}{57}=\frac{5^{2x}+5^{2x+1}+5^{2x+3}}{131}\)
4.(5-x)-3.(1-x)=-32
3.|2x-3|=7-(-14)
22x-1-32=23