Tìm x biết 128 - 3 . ( x + 4 ) = 25

Bài 1; Timd x biết a) 128 - 3 . ( x + 4 ) = 25 b) 15 - 5 . | x + 4 | = -12 -3 c) ( 4x - 8 ) . ( 7 - x ) = 0 d) ( x ^ 2 - 36 ) . ( x ^ 2 + 5 ) = 0 e) x . ( x + 7 ) -11 = 2 . ( x + 5 ) f) ( x + 1 ) + ( x + 2 ) + ( x + 3 ) + ......+ ( x + 10 ) = 75 g) x chia hết 8 ; x < 0 h) 2x + 3 chia hết x + 1