Question

Решите неравенство 2√7(12-5x)+3√3(5x-12)≥0

Answer 1

$( 2 \sqrt{7}-3 \sqrt{3} )(12-5x) \geq 0$
$( 2 \sqrt{7} -3 \sqrt{3} )(5x-12) \leq 0$
$5x \leq 12$
$x \leq 12/5$