GIẢI PHƯƠNG TRÌNH ( PHƯƠNG TÌNH TÍCH)
Bài 1
a) (4-3x)(10x-5)=0
b) (7-2x)(4+8x)=0
c) (9-7x)(11-3x)=0
d) (7-14x)(x-2)=0
e) (2x+1)(x-3)=0
f)(8-3x)(-3x+5)=0
g)(16-8x)(2-6x)=0
h) (2x+1)^2=(x-1)^2 i) (11-33x)(x+11)=0
j) (x-1/4)(x+5/6)=0
k) (7/8-2x)(3x+1/3)=0
l) 3x-2x^2=0
m) (x+4)(6x-12)=0
n)x^3-5x^2+6x=0 o)-8x^2+x=0
p) 10x^2-15x=0
q) x^2-4=0
q) 9-x^2=0
r) x^2-1=0\
s) 5x+10x^2=0
t) 4x+3x^2=0
u) 3x^2+5x+2=0
Bài 2
a) (x-3)(2x-1)=(2x-1)(2x+3) ; b) (5+4x)(-x+2)=(5+4x)(7+5x)
c) (4+x)(x-5)=(3x-8)(x-5)=0 ; d) (3x-8)(7-21x)=(9+2x)(7-21x) e) (10+7x)(x-1)=(9x-2)(x-1); f) (9x-4)(2x-1)-(2x-1)(6+x)=0
g) 9x^2-1=(3x-1)(x+4) ; h) (x+7)(3x+1)=49-x^2
Loga
Sinh Học lớp 12
