A quadratic equation in the variable \(x\) is an equation of the form \(ax^2+bx+c=0\), where \(a, b, c\) are real numbers, \(a≠0\). The equation \(ax^2+bx+c=0\) is called the standard form of a quadratic equation.
Based on this try to find the answers for below questions.
1. Which of the following is a quadratic equation?
2. Degree of quadratic equation is
3. Which of the following is not a quadratic equation
4. The sum of the squares of two consecutive odd numbers is \(394\). Form the quadratic equation to find the required numbers.