Question

Tìm x 

\(\left(\dfrac{4}{3}\right)^{5x}.\left(\dfrac{3}{16}\right)^{5x}=0\)

Answer 1

\(\left(\dfrac{4}{3}\right)^{5x}.\left(\dfrac{3}{16}\right)^{5x}=0\)

\(\left(\dfrac{4}{3}.\dfrac{3}{16}\right)^{5x}=0\)

\(\left(\dfrac{1}{4}\right)^{5x}=0\)

⇔\(\dfrac{1}{4}=0\) (vô lí)

⇒không tồn tại x