Quadratic equations are where the degree of the polynomial is $2$. The standard form of the quadratic equation is $ax^2 + bx + c$ = $0$ where $a \neq 0$. Solving the quadratic equation we can get $1, 2$ or $0$ real solutions. There are many methods of solving quadratic equations like
• Solving by Graphing
• Solving by factorization
• Solve using quadratic formula
• Solving by square root method
• Solve by completing the square.
This lesson we are going to concentrate on solving the quadratic equation by factorization and by completing the square.