Tìm x biết:
a/ 3x( 2x +7) – ( x+ 1)( 6x -5) = 10
b/ (x – 4)² – 36 =0
c/3(2x – 1) – 5( x – 3) =4
d/ (2x – 1)2 – (x+3)2 = 0
e/ (x – 3)(x – 7) – x2 = 1
f/ ( x +2)² – ( x – 2)( x-1) = 0
g/ ( x – 1)²– ( x – 2)( x+2) = 0
h/ ( 10x + 9).x – ( 5x – 1)(2x +3) = 8
Loga
Sinh Học lớp 12
