Question

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

1️⃣ x² + 3x – 5 = 0
2️⃣ x² + x³+ 2 = 0
3️⃣ 3 + x + x² = 0
4️⃣ x² – 9 = 0​

Answer 1

Answer:

3 + x + x² = 0

Step-by-step explanation:

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Answer 2

Answer:

x² – 9 = 0​

Step-by-step explanation:

option d is correct one