PayeA264
27.11.2021 •
Mathematics
A. Determine the nature of the roots of the following quadratic equations using the discriminant. Copy the table and place your answer inside the box. Write your solution for the discriminant on tablet papers.
1. x2 - 4x + 4 = 0
2. x2 + 6x - 7 = 0
3. 3x2 - 17x + 10 = 0
4. x2 - 2x - 2 = 0
5. 2x2 - 3x + 3 = 0
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Ответ:
C and D
Step-by-step explanation:
Here, you just have to multiply each equation out. In order, it goes:
16x + 320
16x + 36x
16x + 36
16x + 36
16x + 72
Only C and D match 16x + 36, so those are your answers.