Question

ai giúp em với ạ

Answer 1

a: \(\Leftrightarrow x:\dfrac{-1}{14}=\dfrac{-35}{8}\)

hay x=5/16

b: \(\Leftrightarrow x\cdot\dfrac{11}{15}-\dfrac{2}{5}=0\)

=>11/15x=2/5

hay x=6/11

c: \(\Leftrightarrow x\left(x-\dfrac{1}{5}\right)\left(x+\dfrac{1}{5}\right)=0\)

hay \(x\in\left\{0;\dfrac{1}{5};-\dfrac{1}{5}\right\}\)