ПОМОГИТЕ РЕШИТь!!!!!!!!!!!!!!!!!!!! (5x+7)(x-2)< 21x^2-11x-13

Question

ПОМОГИТЕ РЕШИТь!!!!!!!!!!!!!!!!!!!!
(5x+7)(x-2)< 21x^2-11x-13

Answer 1

5х^2-10х+7х-14<21х^2-11х-13<br>5х^2-21х^2-10х+7х+11х<14-13<br>-17х^2+8х<1<br>-17х^2+8х-1<0</span>