Câu 1: Giái phương trình
a) (4-x)(2x+5)= 0
b)(x+6)(3x –3) =0
c) 2(x+7)+24 = 3(5x– 1) – 4(x+1)
2
e)
x+11
6.
6x +66
d) 3(2x-1)-2(3-х)%3-1
%3D
x-12
(x+11)(x-12)
6.
f).
x+1
3
9х-3
1
3x-1
g)
x+1
%3D
%3D
1-x (x+1)(x-1)
1-x (x+1)(r -1)
h) |2x| = 3.x - 4
k) |-3지-x+6
i) |2x| =x +5