Tìm x biết
Tìm x biết
(x+ 1)^3 - x( x ^2= 2x - 5)= 21
(x- 2)^3 - x(x^2 -6x +7)= 7
(2a +3)^3 - 8x (x= 2)^2 - 4x (x-5)= -57
(3x- 2) ^3 - 3x (3x- 4) -9x (2x +3) = 109
(x+ 1)^3 - x( x ^2= 2x - 5)= 21
(x- 2)^3 - x(x^2 -6x +7)= 7
(2a +3)^3 - 8x (x= 2)^2 - 4x (x-5)= -57
(3x- 2) ^3 - 3x (3x- 4) -9x (2x +3) = 109