Решите уравнение (3х+4)( во второй степени)-16=0
(3x + 4)^2 - 16 = 0 (3x + 4)^2 - 4^2 = 0 (3x + 4 - 4) * (3x + 4 + 4) = 0 3x * (3x + 8) = 0 x *( 3x + 8) = 0 x = 0; 3x + 8 = 0 ==> 3x = - 8 ==> x = - 8/3