	trần lan \| Chat Online
	14/06/2018 20:26:20
	Toán học - Lớp 8 \| Toán học \| Lớp 8

2; b) (5x - 1).(2x + 7).(2x - 3).(5x + 9) = 0

Tìm x biết
a) 1/2x.(2/5-4x)+(2x+5).x=-13/2
b) (5x-1).(2x+7).(2x-3).(5x+9)=0
c) (3x+4).(5x-1)+(5x+2).(1-3x)+2=0
d) (5x-1).(2x+3)-3.(3x-1)=0
e) X^3(2x-3)-x^2(4^2-6x+2)=0
f) X(x-1)-x^2+2x=5
g) 2X(x-5)-x(3+2x)=0
h) 8(X-2)-2(3x-4)=2