Activity 2: Which Are Not Quadratic Equations?
Use the mathematical sentences below to answer the questions that follow.
x²+9x+20=0
2t2<21-9t
r² + 10r≤ -16
3w² + 12w ≥0
2s²+7s+50
15-6h² = 10
4x²-25=0
m² = 6m-7
1. Which of the given mathematical sentences are quadratic equations?
2. How do you describe quadratic equations?
3. Which of the given mathematical sentences are not quadratic equations? Why?
4. How would you describe those mathematical sentences which are not quadratic equations How are they different from those equations which are quadratic?