Question

(2x-4) (x+3)=0

 

Answer 1

Ta có : 

(2x-4)(x+3)=0

TH1:

2x-4=0

2x=0+4

2x=4

x=4:2

x=2

TH2:

x+3=0

x=0-3

x=-3

Answer 2

x=2

x= -3

tick mk nha

Answer 3

(2x - 4)(x + 3) = 0

TH1: 2x - 4 = 0

2x=  4

x = 2

TH2: x + 3 = 0

x = 0 - 3

x = -3

Vậy x \(\in\) {-3 ; 0 }

Answer 4

(2x - 4)(x + 3) = 0

Th1: 2x-  4 = 0

2x = 4

x = 2

TH2: x + 3 = 0

x=  0 - 3

x = -3

\(x\in\left\{-3;2\right\}\)