Question

помогите.х^2-4/7x-2<0

Answer 1

$frac{x^2-4}{7x-2} textless 0\\ frac{(x-2)(x+2)}{7(x-frac{2}{7})} textless 0\\---(-2)+++(frac{2}{7})---(2)+++\\xin (-infty ,-2)cup (frac{2}{7},2)$