Написать программу на C++.Вариант 2

include lt;iostreamgt;

include lt;algorithmgt;

using namespace std;

int main()

double a, b, c, z, v, w;

std::cin gt;gt; a gt;gt; b gt;gt; c;

z = a / b;

v = (1.0/3.0) * a * b;

w = c * c * c;

a = z;

b = v;

c = w;

double D = b * b - 4.0 * a * c;

if( a == 0.0)

double x = -c / b;

std::cout lt;lt; "X = " lt;lt; x lt;lt; std::endl;

else if (b == 0.0 amp;amp; -c / a gt; 0.0)

double x1 = std::sqrt(-c / a);

double x2 = -std::sqrt(-c / a);

std::cout lt;lt;"X1 = " lt;lt; x1 lt;lt; ", X2 = " lt;lt; x2 lt;lt; std::endl;

else if (D == 0.0)

double x = -b / (2.0 * a);

std::cout lt;lt;"X = " lt;lt; x lt;lt; std::endl;

else if (D gt; 0.0)

double x1 = (-b - std::sqrt(D)) / (2.0 * a);

double x2 = (-b + std::sqrt(D)) / (2.0 * a);

std::cout lt;lt;"X1 = " lt;lt; x1 lt;lt; ", X2 = " lt;lt; x2 lt;lt; std::endl;

else

std::cout lt;lt; "D lt; 0, корней нет" lt;lt; std::endl;;

   return 0;