x . ( x + 4 ) . ( 4 - x ) + ( x - 5 ) . ( x^2 + 5x + 25 ) = 3
x . ( x + 4 ) . [ - ( x + 4 ) + ( x - 5 ) . ( x^2 + 5x + 25 ) = 3
( x - 1 ) . ( x + 4 ) + x^3 - 125 = 3
Loga
Sinh Học lớp 12
