Решить уравнение x3 – 4x2 – 9x + 36 = 0
\\ x_1=3; \ x_2=-3; \ x_3=4 " alt="x^3 - 4x^2 - 9x + 36 = 0 \\ x^2(x-4)-9(x-4) = 0 \\ (x^2-9)(x-4) = 0 \\ (x-3)(x+3)(x-4)=0; => \\ x_1=3; \ x_2=-3; \ x_3=4 " align="absmiddle" class="latex-formula">
\\ x_1=3; \ x_2=-3; \ x_3=4 " alt="x^3 - 4x^2 - 9x + 36 = 0 \\ x^2(x-4)-9(x-4) = 0 \\ (x^2-9)(x-4) = 0 \\ (x-3)(x+3)(x-4)=0; => \\ x_1=3; \ x_2=-3; \ x_3=4 " align="absmiddle" class="latex-formula">