Question

*Which of the following is NOT a quadratic equation?*

1️⃣ 3² - 5x + 3 = 0
2️⃣ m³- 5m² + 4 = 0
3️⃣ 9y² + 5= 0
4️⃣ (l + 2) (l - 5) = 0​

Answer 1

4.(l + 2) (l - 5) = 0 is not the quadratic Equation.