Value of variable 3 (#8827)

Algorithm Analysis

To solve the problem, it is necessary to calculate the value of the given expression.

Algorithm Implementation

Read the value of the variable $x$ .

scanf("%lf", &x);

Calculate the value of the variable $y$ .

y = (x * x + 3 * x - 4) / (2 * x - 3) - (x + 2) / (x * x - 5 * x + 7);

Output the result to the thousandths.

printf("%.3lf\n", y);

Java Implementation

import java.util.*;

class Main {
    public static void main(String[] args) {
        Scanner con = new Scanner(System.in);
        double x = con.nextDouble();
        double y = (x * x + 3 * x - 4) / (2 * x - 3) - (x + 2) / (x * x - 5 * x + 7);
        System.out.print(y);
        con.close();
    }
}

Python Implementation

x = float(input())
y = (x * x + 3 * x - 4) / (2 * x - 3) - (x + 2) / (x * x - 5 * x + 7)
print(y)