Bai 1. (tim x)
a, (x+2)(x+3)-(x-2)(x(+5) = 6.
bi
G
3 (2x+ 1) (3x + 1)- (2x-3) (4x-1)=0-
(x + 1)(2-x)-(3x+5)(x+2) =~4x ² +1.
(5x - 1)(x+3) - (x-2) (5x = 4) = 17
e) (2x + 7) (5x+ 6) = (x + 1) (10x + 7) = (x + 2) - (x-7)
4(x + 5)(2x-3) - 86x - 1)(x + 4) = 0.
-
15