Question

2(x + 3) – x(x + 3) = 0

 

Answer 1

x = 2 hay x = -3

Answer 2

2(x + 3) - x(x + 3) = 0

(2 - x)(x + 3) = 0

=> 2 - x = 0 hoặc x + 3 = 0

=> x = 2 hoặc x = -3

 

Answer 3

\(2(x+3)-x(x+3)=0\)

\((x+3)(2-x)=0\)

=> \(\left[\begin{array}{} x+3=0\\ 2-x=0 \end{array} \right.\)

=> \(\left[\begin{array}{} x=-3\\ x=2 \end{array} \right.\)

Vậy x = 2 và x = -3