Question

Answer 1

Câu 4:

\(\dfrac{41}{-19}=\dfrac{-41}{19};\dfrac{-7}{-31}=\dfrac{7}{31};\dfrac{-5}{-191}=\dfrac{5}{191};\dfrac{-51}{-37}=\dfrac{51}{37}.\)

Câu 6:

\(\dfrac{-30}{6}< x\le\dfrac{-28}{14}.\Leftrightarrow-5< x\le-2.\Rightarrow x\in\left\{-4;-3;-2\right\}.\)