4x + 6 = 0;
6x^2 + 4x = 0 x (6x + 4) = 0 1) x = 0 ; 2) 6x + 4 = 0 6x = - 4 x = - 2/3
4х+6х²=0, 2х(2+3х)=0, х(2+3х)=0, 2+3х=0, х=0. х= Ответ: ; 0.