Question

x mũ 3 : (-1/2 mũ 2) = 1/2 cứu tui với

 

Answer 1

\(x^3:\left(-\dfrac{1}{2}\right)^2=\dfrac{1}{2}\)

\(\Rightarrow x^3:\left(\dfrac{1}{2}\right)^2=\dfrac{1}{2}\)

\(\Rightarrow x^3=\left(\dfrac{1}{2}\right)^2\cdot\dfrac{1}{2}\)

\(\Rightarrow x^3=\left(\dfrac{1}{2}\right)^3\)

\(\Rightarrow x=\dfrac{1}{2}\)

Answer 2

\(x^3:\left(-\dfrac{1}{2}\right)^2=\dfrac{1}{2}\Rightarrow x^3=\dfrac{1}{2}.\left(-\dfrac{1}{2}\right)^2=\dfrac{1}{2}.\left(\dfrac{1}{2}\right)^2=\left(\dfrac{1}{2}\right)^3\)

\(\Rightarrow x=\dfrac{1}{2}\)

Answer 3

x3:(−21​)2=21​

⇒�3:(12)2=12⇒x3:(21​)2=21​

⇒�3=(12)2⋅12⇒x3=(21​)2⋅21​

⇒�3=(12)3⇒x3=(21​)3

⇒�=12⇒x=21​
 

Answer 4

x3:(−21​)2=21​⇒x3=21​.(−21​)2=21​.(21​)2=(21​)3

⇒�=12⇒x=21​