Question

\(\dfrac{2}{3}\)x (\(x^2\) -4) = 0

Answer 1

Ta có \(\dfrac{2}{3}\)x (x²- 4) = 0

\(\Rightarrow\)x² - 4 = 0

\(\Rightarrow\)x² = 4

\(\Rightarrow\)x \(\in\) {2;-2}

Chúc bạn học tốt!