System Failure's Profile

They weren't doing their homework while their mother was cooking on my uncle's farm

(x + 1)² – (x + 1)(x – 2) = 0.

• (x + 1)(x + 1 – x + 2) = 0.
• 3(x + 1) = 0.
•  x + 1 = 0.
• x = -1.

Vậy x = -1

 6x(x2 - 2) - (2 - x2) = 0

=> 6x( x² – 2) – (2 – x² ) = 0

=> (6x + 1)(x² - 2) = 0    

=> 6x + 1 = 0 hoặc x² - 2 = 0

=> 6x = -1 hoặc x² = 2

=> x = -1/6 hoặc x = căn 2

Vậy x thuộc [-1/6, căn 2]

Câu D. Looking for

If the river wasn't dirty, fishes wouldn't die

I had this computer repaired one hour ago

Câu D.hasn't finished

 Câu trả lời đúng là : A. to join.

If a foreigner visits Vn, I will advice him/her to go to Ha Long Bay, Son Doong Cave,...

1. Collecting.

2. is doing.