Question

Решите неравенство (x-3)(2x+3)<-7

Answer 1

$(x - 3)(2x + 3) < - 7 \ \ 2 {x}^{2} + 3x - 6x - 9 < - 7 \ \ 2 {x}^{2} - 3x - 2 < 0 \ \ 2(x + frac{1}{2} )(x - 2) < 0$

+++++++++++•(-1/2)--------------•(2)++++++++++> Х



ОТВЕТ: ( - 1/2 ; 2 )