#include <iostream>
#include <cmath>
int main()
{
double y, x = -0.53;
y = 2 * pow(x, 4) - 3 * pow(x, 3) + 4 * pow(x, 2) - 5 * x + 6;
std::cout << y;
}
#include <iostream>
#include <cmath>
int main()
{
double y, x = -0.53;
y = 2 * pow(x, 4) - 3 * pow(x, 3) + 4 * pow(x, 2) - 5 * x + 6;
std::cout << y;
}