tương lai đơn : 1. What .......... ( the weather/ be) like tomorrow?
2. There 's someone at the door , (you/get) it? 3. How ........................... (he/get) here?
tìm x, biết: a) ( x + 8) ( x + 6) - x^2 + 104 ; b) 6 x^2 - ( 2 x - 3 ) ( 3x + 2) - 1 =0 ; c) ( x+ 4)^2 - ( x + 1)( x - 1 )= 16; d) ( 10x + 9)x - ( 5x -1) (2x +3) = 8 ; e) ( 2x -1 ) ^2 + ( x + 3 ) ^2 - 5 ( x + 7)(x - 7) = 0 f) x(x+1) (x +6) - x^3 =5x